64 Audio

Industry Leaders Astell&Kern and 64 Audio Join Forces to Present XIO, an IEM that Fuses Striking Design with Sonic Precision to Set a New Standard

• 10-Driver hybrid universal IEMs: (2x) DD + (8x) BA
• Features 64 Audio's patented tia, apex, and LID technology
• Faceplate representing Astell&Kern's design heritage
• Precision engineering for realistic depth and space
• Specially crafted Silver Copper cable

Astell&Kern x 64 Audio

XIO is the culmination of Astell&Kern and 64Audio’s shared philosophy on design and sound. Blending precision engineering with artistic sensibility, XIO goes beyond simply playing music. It shapes sound into a tangible experience, offering value that surpasses expectations.

Designed as a true object of art, XIO sets a new standard for high-end in-ear monitors—an uncompromising fusion of aesthetics and acoustics that redefines what's possible.

Engineered for Precision

XIO is meticulously engineered both inside and out. Its advanced hybrid system, featuring ten high-performance drivers, is finely tuned with a 4-way passive crossover to ensure every frequency is in perfect harmony. This precise tuning delivers a realistic sense of depth and a rich, spacious soundstage.

10-Driver System

tiaⓇ waveguide
The tia Ⓡ driver is designed with a direct-radiating structure that eliminates the traditional sound tube, enhancing the delicacy of high frequencies. This design minimizes damping and distortion, while the precisely positioned driver, together with a custom waveguide system, delivers a deep sense of space and airy, detailed highs.

BA Driver Manifold Assembly
The mid and upper-mid frequencies are powered by six and one balanced armature drivers, respectively, delivering smooth transitions and rich texture. Vocals, instruments, and their unique harmonic details are rendered warm and clear, creating a natural and well-balanced sense of space within the soundstage.

TRUE ISOBARIC Dual Dynamic Driver
The TRUE ISOBARIC structure features two dynamic drivers perfectly synchronized within an acoustically neutral coupling chamber, enabling precise control. This design delivers bass with exceptional depth and density, as well as powerful sound impact—surpassing what is typically possible with conventional IEMs.

64 Audio Patented Technology

tiaⓇ
Tubeless In-Ear Audio (tia) is a patented IEM design that minimizes resonance and distortion, delivering clear and vivid sound.

The tia system consists of the tia driver, single-bore design, and acoustic chamber. XIO adopts the tia driver and single-bore structure to capture the pure essence of sound.

apexⓇ
apex (Air Pressure Exchange) is a patented venting system that naturally releases pressure from the sealed ear canal while maintaining excellent noise isolation.
This technology reduces listening fatigue during extended sessions and provides a much wider, more realistic soundstage. The m15 module, standard with XIO, is specially redesigned for XIO with DLC coating on 904L stainless steel, making it a unique apex solution exclusive to this model.

LIDⓇ
Linear Impedance Design (LID) is a patented circuit that compensates for nonlinear resistance between drivers, ensuring consistent sound quality regardless of changes in the output impedance of the source device. This technology provides a stable sound signature and accurate frequency response at all times.

Precision-Milled 904L Stainless Steel Shell

The exterior of XIO goes beyond that of a typical IEM, standing out as an “audio art piece” that satisfies both visual and tactile senses.
Its robust structure is crafted by precisely machining 904L stainless steel—a material harder and more challenging to work with than standard stainless steel—and is then finished with a luxurious black DLC (Diamond-Like Carbon) coating for an exceptional premium texture.

The faceplate exhibits Astell&Kern’s design heritage, projecting a three-dimensional and elegant presence through deep shading and delicate reflections.

Silver Plated Copper Litz Cable

This dedicated cable, specially crafted for XIO, is designed to achieve perfect aesthetic harmony with the earbuds. The four-core cross-braided cable is made from silver-plated, single-crystal copper (UP-OCC), offering outstanding noise shielding and transparent signal transmission. With a low impedance of just 0.29Ω, it maximizes electrical efficiency.

Specifications

• Driver
  • (2x) Dynamic drivers for lows
  • (6x) BA for mids
  • (1x) BA for high-mids
  • (1x) tia BA for highs
• Frequency Response: 5Hz-22kHz
• SPL: 103dB @ 1kHz, 1mW
• Crossover: Integrated 4-way passive
• Impedance: 6.3 ohms @ 1kHz
• Cable: Silver-plated UP-PCC Copper litz
• Plug: 4.4mm
• Connector: 0.78mm 2-pin

In the Box

• Astell&Kern x 64 Audio XIO IEMs
• 64 Audio premium leather case
• TrueFidelity foam ear tips (SML)
• Silicone ear tips (SML)
• SpinFit Silicone ear tips (SML)
• Cleaning tool and cloth
• Cable clip
• Cable
• Apex modules
  • m20 (silver)
  • m15 (stainless steel)
  • m12 (gold)
  • mX (black)

Volür is a 10-driver Hybrid Universal IEM that Builds Upon 64 Audio's Hybrid Nio

• m12 (gold) apex modules included with purchase for a limited time
• 10-driver flagship with (x2) Dynamic, (x7) BA, and (x1) tia® driver
• Tia® driver optimizes efficiency with greater tuning control
• Made with purple abalone chip from responsibly harvested New Zealand Paua shell
• Features 64 Audio's Tia®, LID®, Apex®, and True Isobaric™ proprietary tech
• Check out our measurement of Volür

Volür: a Rewarding Evolution

Ushering in a new era of technological innovation, Volür is a 10-driver hybrid universal, building on the heritage of 64 Audio's 1st high-driver count hybrid: Nio (released in 2020.) Joining the ranks of powerhouses like U18s and Fourté, this small package is filled with a massive amount of proven and novel acoustic science.

The heart of Volür is made of 2 new custom 9mm dynamic drivers in a True Isobaric configuration, delivering unprecedented sonic capabilities in the LF band. While 64A's direct radiating tia™ high-driver remains the criterion in HF performance, the new tia™ waveguide optimizes its efficiency while offering greater tuning control.

The outer shell remains the same size with all significant structural changes occurring internally. The faceplate features a sleeker chamfer, and as an homage to the original Nio, a purple abalone chip from New Zealand Paua shells.

64 Audio Proprietary Tech

Tia®
Tubeless In-ear Audio reduces unwanted resonance and distortion for a transparent sound signature. The direct-radiating tia driver is fitted with a new waveguide with special diffusion windows to increase the efficiency and amplitude of the HF band.

LID®
Linear Impedance Design is a patented circuit that corrects non-linear electrical resistance across multiple driver-sets. Inconsistent impedance across varying devices/sources often results in varying frequency response. Restoring proper interaction with the source enables consistent, reliable sound.

Apex®
Air Pressure Exchange is a vent that releases air pressure in the ear canal while retaining standard levels of isolation. This provides listeners with increased comfort, alleviates fatigue, and allows for a more realistic soundstage. The Apex internals for Volür were redesigned to maximize space for the LF bore. Volür comes with 4 modules: mX, m12, m15 and m20.

True Isobaric™
64 Audio's cone-to-magnet isobaric driver config consists of 2 drivers connected by an acoustically inert coupling chamber resulting in better damping, lower distortion, twice the power handling, and extended LF response. A new 9mm dynamic driver was created with an upgraded magnet and Ti Cone to increase sensitivity. An acoustic low-pass filter originally developed for Fourté Blanc was used to further shape the sound.

Specifications

• Transducer: Dynamic + BA
• Transducer Config
  • (x2) Dynamic drivers (low)
  • (x6) BA drivers (mid)
  • (x1) BA driver (high-mid)
  • (x1) tia™ driver (high)
• 4-way passive crossover
• Frequency Response: 5Hz – 22kHz
• Sensitivity: 103db/mW @ 1kHz @ 1mW (94mV)
• Impedance: 6.3Ω @1kHz
• Isolation
  • m20: -20dB
  • m15: -15dB
  • m12: -12dB
  • mX: -10dB
• 64 Audio 1 Year Warranty

Cable

• 0.23Ω impedance
• Silver-plated OCC Copper
• 26 AWG
• 7 x 7 x 4 Multi-twist

In the Box

• Volür IEMs
• Leather case
• TrueFidelity foam ear tips (S/M/L)
• SpinFit + 64A silicone ear tips (S/M/L)
• 3.5mm cable
• Lapel cable clip + micro cleaning brush
• 64 Audio stickers

64 Audio's Most Popular Custom IEM is Now Available in Universal Form as the U6t

• 6-Driver Balanced Armature IEMs
• Draws from same groundbreaking technology as 64 Audios flagship IEMs
• Natural and balanced sound, yet softer presentation
• Features 64 Audio proprietary tech: tia, apex + LID
• Silver-plated OCC Copper cable with 3.5mm termination

U6t

64 Audio’s most popular CIEM now available in a universal form. Drawing from the sonic palette of U12t, U6t is 64 Audio's most affordable audiophile monitor to date. Boasting the same groundbreaking technology as their flagship IEMs in our ergonomic aluminum shell to make it more accessible than ever.

While looking towards U12t for sonic inspiration, the U18s influenced the new dark grey matte shell finish as well as its newly redesigned packaging and proprietary cable. The understated shell design and classic black faceplate reflect what you can expect from the new generation of 64 Audio’s audiophile products.

Sound

In standard 64 Audio fashion, U6t is a balanced natural sounding earphone, slightly set apart from our other UIEM models by offering a softer presentation of a mix. Beautiful upper-mid imaging, realistically presenting instruments like guitars and piano as well as breathing life into saturated mid-bass mixes, especially when vocal focused. Using the various included apex modules and ear-tips allows the listener to further customize the sound of the U6t based on the needs of the music.

Exclusive New Premium Cable

• 0.23Ω Total Impedance
• 7 x 7 x 4 Multi-Twist
• Silver-plated OCC Copper Wire
• 26 Awg

Technology

Tia
A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specifications

• Driver: (6x) Precision balanced armature drivers
• Driver Configuration: 1 tia high, 1 hi-mid, 2 mid, 2 low
• Frequency Response: 10Hz–20kHz
• Sensitivity: 108 dB/mW
• Impedance: 10Ω Nominal
• Crossover: Integrated 4-way passive crossover
• Isolation: -20dB with m20 apex module

In the Box

• U6t Universal IEMs
• 64 Audio premium leather case
• TrueFidelity Eartips (S,M,L)
• Silicone Eartips (S,M,L)
• SpinFit Eartips (S,M,L)
• Black premium cable
• apex Modules: m20, m15
• Round Sticker

64 Audio U4s Delivers Flagship Tech at an Affordable Price

• 4-driver hybrid IEM delivers classic 64 Audio performance with a new twist
• The slate blue shell provides a bold, stylish look
• The Tia treble driver delivers crisp, clear highs with the new dynamic driver providing deep sub-bass
• Includes Apex modules for varying isolation, silver-plated copper cable, carrying case, and plenty of ear tips
• Check out our measurement of U4s

Bold New Look and Sound

64 Audio's fiercely popular U4s features an ergonomic Aluminum shell, a Dynamic driver, x2 BAs, and a patented Tia driver, enhanced by custom 64A Tia, LID, and Apex technology for precision and clarity. A 4-way crossover with a proprietary low-pass filter minimizes distortion, while apex modules and ear tips allow for sound customization.

Powerful, deep bass remains tight and controlled in the U4s, avoiding muddiness. Revealing mids enhance stereo imaging and separation, creating a balanced, immersive sound suited for any genre and volume preference.

Tune Your Sound

The included Apex Modules and Eartips each have different sonic characteristics. You can use different combinations to accentuate different aspects of U4s' sound.

mX Module
Widest imaging with a reduction in noise isolation. Sub-bass response is diminished, giving you the ability to attenuate to your preferences based on music type and mix. It is ideally used for recordings that do not capture much sub-bass content while containing a lot of spatial information.

m12 Gold Module (*Not included with U4s)
Developed for those who feel the bass drop between m15 and mX is too drastic. Perfect for tracks where the bass is slightly overpowering the rest of the spectrum. Increases mid-range punch (reduction by 1db-4db at 130hz-20hz.)

m15 Module
The m15 module strikes the perfect balance between bass attenuation and isolation, featuring dual ambient ports that are larger than the single port in the m20. With -15dB isolation and an additional -4dB reduction at 20Hz compared to the m20, it offers a more open, natural listening experience while still maintaining effective noise control.

m20 Module
Greatly increases sub-bass response while keeping the mid-bass clean. Works great for overly bright mixes as it tilts the response towards low end. While
this module shrinks the sound-stage width, it works great for synth-heavy or modern pop music that doesn’t contain much acoustic spatial information. The m20 module also unlocks some of the missing sub information in older rock recordings (increase by 1db-2db at 40hz-20hz.)

Foam Tips
Narrows the mix and shifts HF resonant peak down. More secure fit.

Spinfit
Shifts HF resonant peak up. Best at handling microphonics and occlusion effects. The nozzle is decoupled well from the silicone touching the ear canal.

Wide Nozzle
Staging is less localized with better panning blend. Hits target frequency response curve with m15 module.

Specifications

• Transducer Configuration
  • (x1) Dynamic driver (Lows)
  • (x2) Balanced Armature drivers (Low Mids, High Mids)
  • (x1) Tia driver (Highs)
• Frequency Response: 10Hz – 20kHz
• Sensitivity: 107 dB/mW @ 1kHz @ 1mW (94mV)
• Impedance: 11Ω @1kHz
• Crossover: Integrated 4-way passive crossover
• Isolation
  • m20 Module: -20dB
  • m15 Module: -15dB
  • m12 Module: -12dB (*not included with U4s)
  • mX Module: -10dB
• Cable
  • 0.23Ω total impedance
  • 7 x 7 x 4 Multi-twist
  • Silver-plated OCC copper wire
  • 26 AWG
  • 3.5mm termination
• 64 Audio 1 Year Warranty

In the Box

• 64 Audio U4s IEMs
• Leather carrying case
• TrueFidelity ear tips (S/M/L)
• Silicone ear tips (S/M/L)
• SpinFit ear tips
• Ear tip holder
• Black premium Silver-plated copper cable with 3.5mm
• 64 Audio Apex modules (mX, m15, m20)
• 64 Audio Sticker

The 64 Audio U18t is a Top-of-the-Line Universal IEM Featuring an Unprecedented 18 Balanced Armature Drivers Per Ear

• Delivers exceptional detail, clarity and extension across all frequencies
• Precision-machined from a solid piece of aluminum
• Apex Core provides pressure release for great bass response and long listening sessions
• The tia system features an open balanced armature design and a single-bore soundport, reducing unwanted resonance and distortion

From 64 Audio

Packed with an unbelievable 18 balanced armature driver per ear, the U18t is our top-of-the-line reference in-ear monitor. This industry-first design pushes the limits of what a reference monitor can be with incredible detail, extension, and unmatched clarity across all frequencies with a powerful low-end and extended sub-bass - just like its custom counterpart, the A18t. The A18t is preferred by critical listeners in engineering, monitoring and mixing, and audiophiles.

Each ergonomic shell is machined out of a solid piece of aluminum and finished with an elegant copper-patinated inlay on the faceplates.

Technology

U18t features the following unique technology:

Tia

The tia system is comprised of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. All our Custom In-Ear Monitors with tia feature two major elements of the tia system: the tia driver and the tia single-bore design.

Tia Driver
An open balanced armature speaker design for realistic resolution and transparency. By opening a balanced armature, the diaphragm becomes fully unobstructed, reducing resonance in the IEM and allowing sound to travel more naturally to the ear.

Tia Single Bore
A huge advancement in eliminating unwanted tube resonance. The large bore itself serves as a sound-shaping chamber and aids the tia high driver in delivering a linear and coherent frequency response. The short sound path provides remarkable high-frequency extension and smoothness. The large single bore also allows for easier maintenance.

Apex

Apex, or Air Pressure Exchange, is a pneumatically interactive vent that releases air pressure in a sealed in the ear canal. Apex comes in two variations, m15 (-15dB) and m20 (-20dB).

Alleviate Listener Fatigue
When you seal a miniature speaker in an ear canal, the air inside becomes trapped. Apex relieves this air pressure, allowing the eardrum to move naturally, so you can comfortably listen longer.

Extend The Soundstage
Freely moving air extends the soundstage and provides a more natural listening experience. It also preserves bass frequencies and helps the listener distinguish individual instruments.

Hear Your Audience
Custom in-ear monitors provide amazing isolation and help you hear your mix more clearly and at lower volumes than a wedge monitor or earbuds. Apex lowers decibel levels while preserving the clarity of the sounds around you, so artists on stage can connect with their audience while protecting their hearing.

LID

LID, or Linear Impedance Design, enables a consistent, reliable sound regardless of what source. This proprietary circuit corrects the non-linear impedances of the drivers, restoring proper interaction with the source and preserving the desired sound signature.

Whether you're a musician plugging into a variety of gear at different gigs or studios, or an audiophile listening from low-impedance sources, LID ensures your IEMs are delivering the desired sound signature consistently. And like all our IEMs, this model can be used with a wide range of personal audio devices as well as all hard-wired and wireless monitor systems.

64 Audio Buyer's Guide

Specs

In the Box

• U18t Universal In-Ear Monitors
• 64 Audio Personalized Protective Case
• TrueFidelity Eartips (S,M,L)
• Silicone Eartips (S,M,L)
• 48" Detachable Premium Cable
• m20 apex Modules
• m15 apex Modules
• Round Sticker

Experience Your Music Like Never Before With U18s, Boasting Resolution and Detail That Will Bring Your Favorite Tracks to New Heights

• 18-Driver Balanced Armature IEMs
• Vibrant, unfiltered sound
• Feature's 64 Audio's array of proprietary technology, including their Electrical Low-Pass Filter
  
• Striking fractal design inspired by nature
• Includes 8-braid Silver cable

U18s

64 Audio revolutionized the IEM industry in 2016 with its world class reference level U18t, the world's first 18-driver earphone. Now, with the introduction of U18s, 64 Audio has taken the heritage of the 18 driver platform and further pushed the envelope of innovation in sound and design. U18s combines proprietary drivers, LID technology and a new electronic crossover network to deliver a uniquely exceptional listening experience.

U18s is handcrafted in the USA from aerospace-grade aluminum billet. CNC milled, hand blasted, fly cut, and twice anodized - the result is a striking fractal design that is inspired by nature itself.

Technology

U18t features the following unique technology:

Tia

The tia system is comprised of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. All our Custom In-Ear Monitors with tia feature two major elements of the tia system: the tia driver and the tia single-bore design.

Tia Driver
An open balanced armature speaker design for realistic resolution and transparency. By opening a balanced armature, the diaphragm becomes fully unobstructed, reducing resonance in the IEM and allowing sound to travel more naturally to the ear.

Tia Single Bore
A huge advancement in eliminating unwanted tube resonance. The large bore itself serves as a sound-shaping chamber and aids the tia high driver in delivering a linear and coherent frequency response. The short sound path provides remarkable high-frequency extension and smoothness. The large single bore also allows for easier maintenance.

Apex

Apex, or Air Pressure Exchange, is a pneumatically interactive vent that releases air pressure in a sealed in the ear canal. Apex comes in two variations, m15 (-15dB) and m20 (-20dB).

Alleviate Listener Fatigue
When you seal a miniature speaker in an ear canal, the air inside becomes trapped. Apex relieves this air pressure, allowing the eardrum to move naturally, so you can comfortably listen longer.

Extend The Soundstage
Freely moving air extends the soundstage and provides a more natural listening experience. It also preserves bass frequencies and helps the listener distinguish individual instruments.

Hear Your Audience
Custom in-ear monitors provide amazing isolation and help you hear your mix more clearly and at lower volumes than a wedge monitor or earbuds. Apex lowers decibel levels while preserving the clarity of the sounds around you, so artists on stage can connect with their audience while protecting their hearing.

LID

LID, or Linear Impedance Design, enables a consistent, reliable sound regardless of what source. This proprietary circuit corrects the non-linear impedances of the drivers, restoring proper interaction with the source and preserving the desired sound signature. Whether you're a musician plugging into a variety of gear at different gigs or studios, or an audiophile listening from low-impedance sources, LID ensures your IEMs are delivering the desired sound signature consistently. And like all our IEMs, this model can be used with a wide range of personal audio devices as well as all hard-wired and wireless monitor systems.

Experience an Incredible Execution of Balanced Armature Tech in a Top Tier Universal IEM with 64 Audio's U12t

• Stacked 12-driver Balanced Armature arrangement
• Sweet, smooth highs, powerful, physical lows, great spatial imaging
• Features 64 Audio's exclusive Tia and APEX technology
• Includes Pearl premium 26 AWG Silver-plated Copper cables in 3.5mm and 4.4mm

From 64 Audio

The U12t does it all, delivering immersive sound and impeccable spatial imaging. It's clean highs extend beautifully with a warm and engaging low-end response - just like its custom counterpart, the A12t. Offering reference-level detail, this IEM is among the best for multi-instrumentalists, engineers, sound monitors, and audiophiles.

Each ergonomic shell is machined out of a solid piece of Aluminum and finished with an elegant brushed Aluminum faceplate.

Tia

The tia system is comprised of 3 major elements: open Balanced Armature tia drivers, tia single-bore design, and tia acoustic chambers.

Tia Driver
Open Balanced Armature speaker design for realistic resolution and transparency. By opening a Balanced Armature, the diaphragm becomes fully unobstructed, reducing resonance in the IEM and allowing sound to travel more naturally to the ear.

Tia Single Bore
A huge advancement in eliminating unwanted tube resonance. The large bore itself serves as a sound-shaping chamber and aids the tia high driver in delivering a linear and coherent frequency response. The short sound path provides remarkable high-frequency extension and smoothness. The large single bore also allows for easier maintenance.

Apex

Apex (Air Pressure Exchange) is a pneumatically interactive sealed vent that releases air pressure in the ear canal. Apex comes in 4 variations:

• m20 (-20dB)
• m15 (-15dB)
• m12 (-12dB)
• mX (-10dB)

Alleviate Listener Fatigue
When you seal a miniature speaker in an ear canal, the air inside becomes trapped. Apex relieves this pressure, allowing the eardrum to move naturally so you can comfortably listen longer.

Extend The Soundstage
Freely moving air extends the soundstage and provides a more natural listening experience. It also preserves bass frequencies and helps the listener distinguish individual instruments.

Hear Your Audience
CIEMs provide amazing isolation and help you hear your mix more clearly and at lower volumes than a wedge monitor or earbuds. Apex lowers decibel levels while preserving the clarity of the sounds around you, so artists on stage can connect with their audience while protecting hearing.

LID

LID (Linear Impedance Design) enables a consistent, reliable sound regardless of the source. This proprietary circuit corrects the non-linear impedances of the drivers, restoring proper interaction with the source and preserving desired sound signature. Whether you're a musician plugging into a variety of gear at different gigs or studios, or an audiophile listening from low-impedance sources, LID ensures your IEMs are delivering the desired sound signature consistently. And like all 64A IEMs, U12t can be used with a wide range of personal audio devices as well as all hard-wired and wireless monitor systems.

Specifications

• Material: T6061 Aluminum shell + Electroformed Stainless Steel faceplate
• Drivers: (x12) precision Balanced Armatures
• Driver Config: (x1) Tia high | (x1) high-mid | (x6) mid | (x4) low
• Frequency Response: 10Hz - 20kHz
• Sensitivity: 108db dB/mW
• Impedance: 12.6Ω
• Crossover: Integrated 4-way passive crossover
• Cable: Pearl premium Silver-plated OCC Copper, 7x7x4 Multi-twist, 0.78mm 2-pin (0.23Ω | 26 AWG | SPC)

In the Box

• U12t UIEMs
• 64 Audio Premium case
• TrueFidelity foam ear tips (S,M,L)
• SpinFit silicone ear tips (S,M,L)
• Silicone ear tips (S,M,L)
• (x2) 4' Pearl Silver premium cables | 3.5mm + 4.4mm
• Apex modules: m20, m15, m12, mX
• Shirt clip, cleaning tool + cloth
• Round Sticker

From 64 Audio

The perfect in-ear monitor for listeners looking for the sweet spot between reference-level clarity and a smooth sound signature for extended listening. The tia Trió is a great earphone for audiophiles seeking a clear, laid back, 3D sound in any genre.

Tia Trió features our complete, three-part tia™ system housed in an ergonomic shell, machined from a solid piece of aluminum and finished with elegant, brushed aluminum faceplates.

Technology

Exclusive technologies that challenge traditional in-ear monitor designs to give you the absolute best listening experience.

Tia
A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

64 Audio Buyer's Guide

Specs

Driver Type/Count	2 precision BA drivers, 1 dynamic driver
Driver Configuration	1 tia high, 1 high-mid, 1 dynamic mid/low
Frequency Response	5Hz – 22KHz
Sensitivity	104db @1kHZ @1mw
Impedance	5.5 +.5/-1.5 Ω from 10Hz – 20kHz
Crossover	Integrated 3-way passive crossover
Isolation	-15dB internal apex technology

In the Box

• Trio Universal In-Ear Monitors
  
• Premium Case
• 3.5mm Black Premium Cable
• TrueFidelity Eartips (S,M,L)
• SpinFit Silicone Eartips (S,M,L)
• Silicone Eartips (S,M,L)
  
• Cleaning Tool + Cable Clip
• Round Sticker
  

64 Audio's First IEM Integrated with Their Apex Technology, Fourté, Delivers Impressive Detail and Larger Than Life Sound

• 4-Driver hybrid IEMs
• Features 64 Audio's three-part tia™ system
• Next-level detail retrieval
• Ergonomic aluminum shell
• Silver-plated OCC Copper cable with 3.5mm termination
• Check out our 64 Audio Buyer's Guide

Tia Fourté

The pinnacle of in-ear monitor technology, tia Fourté takes full advantage of everything 64 Audio has learned up to this point in designing world-class in-ear monitors. Tia Fourté boasts the most accurate sound and widest soundstage of any in-ear monitor, making it the perfect choice for audiophiles seeking detailed, lifelike audio, and three-dimensional sound.

Tia Fourté features 64 Audio's complete, housed in an ergonomic shell, machined from a solid piece of aluminum and finished with elegant, copper patina faceplates.

Technology

Tia Fourté features the following unique technology:

Tia

The tia system is comprised of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. All 64 Audio Custom In-Ear Monitors with tia feature two major elements of the tia system: the tia driver and the tia single-bore design.

Tia Driver
An open balanced armature speaker design for realistic resolution and transparency. By opening a balanced armature, the diaphragm becomes fully unobstructed, reducing resonance in the IEM and allowing sound to travel more naturally to the ear.

Tia Single Bore
A huge advancement in eliminating unwanted tube resonance. The large bore itself serves as a sound-shaping chamber and aids the tia high driver in delivering a linear and coherent frequency response. The short sound path provides remarkable high-frequency extension and smoothness. The large single bore also allows for easier maintenance.

Apex

Air Pressure Exchange (Apex) is a patented vent that releases air pressure in a sealed ear canal all while retaining standard IEM levels of isolation; enabling music enthusiasts to listen more comfortably for longer. This venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex is integrated in Fourté all the way down to the way the shell is milled, offering similar pressure release and isolation to our m20 module.

64 Audio Buyer's Guide

Specs

• Driver: (3x) Precision BA drivers, (1x) Dynamic driver
• Driver Configuration: 1 tia high, 1 high-mid, 1 tia mid, 1 dynamic low
• Frequency Response: 5Hz – 22KHz
• Sensitivity: 114db @1kHZ @1mw
• Impedance: 10 Ω @ 1kHz
• Crossover: Integrated 4-way passive
• Isolation: -20dB internal apex technology

In the Box

• Tia Fourté Universal In-Ear Monitors
• 64 Audio Personalized Protective Case
• TrueFidelity Eartips (S,M,L)
• Silicone Eartips (S,M,L)
• Silver-plated OCC Copper 48" Detachable Premium Cable
• Round Sticker

Feast Your Eyes on 64 Audio's Solo, the Final Note in the Tia® Line, Featuring the Most Striking Housing Update Since 2016

• (1x) 14.2mm Planar Magnetic Driver
• Features world's first Helmholtz resonator in an IEM
• Built with 64 Audio's in-house tech: Tia®, Apex Core, LID, and Helmholtz resonators
• T6061 Aluminum shell, Copper faceplate mesh
• Includes 3.5mm + 4.4mm OCC pure Copper cables
• Check out our measurement of Solo

Introducing Solo

Redefining “full-range sound” in portable high-end audio, the Solo delivers the entire sonic spectrum with a single 14.2mm planar driver. As the culmination of 64 Audio’s legendary Tia® UIEM line, it draws inspiration from the innovative legacy of Fourté, Trio, and Duo. To tackle the challenge of tuning a single driver, 64 Audio introduced a traditional electronic filter alongside the world’s first Helmholtz resonator in an IEM.

Paired with their patented LID technology, these breakthroughs are housed in 64 Audio’s most striking design since the Fourté's 2016 debut. The result is a quintessential 64 Audio sound, blending the detailed transients of planar technology with surprisingly robust low-frequency presence in their 1st ever single-driver UIEM.

Sound

Solo upholds 64 Audio's commitment to accuracy, musicality, and balance while introducing new planar driver technology. With a single driver per side, it delivers agile performance, extracting subtle details for max realism. Acoustic notch filters eliminate harshness without sacrificing performance, while the Apex core enhances high-mid and high frequencies, creating a vast soundstage. This realism is paired with tactile immersion, revealing instrument textures and even the sonic nuances of the recording equipment in your favorite tracks.

Planar Magnetic Driver

The planar magnetic driver uses a flat diaphragm with embedded conductors suspended between magnets, unlike traditional dynamic drivers with a conical diaphragm and voice coil. This uniform movement delivers detailed micro-transients typically requiring a dedicated high-frequency driver, ensuring reliable, high-resolution full-range sound from a single driver.

Technology

Helmholtz Resonators
To redefine Planar Magnetic technology, 64 Audio combined a subtle high-frequency reduction with targeted attenuation of narrow frequency bands. Leveraging years of research into Helmholtz resonators, they integrated two 3D-printed micro-cavities into Solo’s sound chamber. These cavities resonate at specific frequencies, precisely tuned to amplify or diminish problematic tones for a cleaner, more refined sound.

LID
Linear Impedance Design (LID) is a patented circuit that corrects non-linear resistance caused by Solo’s shelf filter. It compensates for variations in source output impedance, ensuring consistent frequency response across devices like smartphones, DAC/amps, and DAPs, preserving the intended sound signature.

Apex® Core
The Solo features 64 Audio’s patented Apex® core technology, enhancing fidelity and spatial accuracy while providing exceptional comfort. With a design similar to the Duo, it offers just enough isolation for focused listening while feeling open and unoccluded. This ensures hours of fatigue-free enjoyment, thanks to its innovative pressure-relieving design.

Copper 8-Braid Cable

Solo is being paired with 64 Audio's first pure copper cable. The OCC Copper, which is 23 x 25 AWG Wires, is built into 8 braids with a pleasant tactile feel as well as an impressively low 0.26Ω impedance rating. Solo comes standard with two of these cables, one SE 3.5mm and one balanced 4.4mm.

Specifications

• Transducer: 14.2mm Planar Magnetic driver
• Frequency Response: 20Hz - 20kHz
• Sensitivity: 100 dB/mW @1kHz
• Impedance: 16Ω @1kHz
• Isolation: -12 dB
  
• Cable:
  • 0.26Ω impedance
  • OCC Pure copper
  • 25 AWG + 23 wires
  • 3.5mm SE + 4.5mm BAL
• 64 Audio 1 Year Warranty

In the Box

• Solo IEMs
• Carry case
• Foam + Silicone ear tips
  
• 2-Pin cables
• Cleaning tool + cloth, shirt clip

64 Audio's Premium Silver-Plated Copper IEM Cable is Designed for Transparent Sound Delivery, Compatible with Their Universal IEMs

• 64 Audio's standard universal IEM cable
• Features branded straight jack
• Angled 2-pin connectors for comfortable fit
• Soft jacketing eliminates tangling and microphonic noise
• Compatible with 64 Audio universal IEMs

Premium Cable

The Premium Cable, which ships standard with almost all of 64 Audio's UIEMs, is an extremely low resistance option if you're looking for transparent sound delivery from your source to your IEMs. It features silver-plated OCC copper wire, angled 2-pin connectors, and soft jacketing to minimize noise and tangling.

Specifications

• Silver-Plated OCC Copper Wire
• 7 x 7 x 4 Multi-Twist
• 26 AWG
• 0.23Ω
• 0.78mm 2-pin connectors

Elevate Your 64 Audio Listening Experience With Their Premium 8-Braid Silver-Plated Copper IEM Upgrade Cable

• Compatible with 64 Audio universal IEMs
• Pure Silver-Plated Oxygen Free Copper
• Features branded bifurcation
• Soft touch jacketing and angled 2-pin connector

8-Braid Cable

The 8-Braid Silver Cable by 64 Audio is a premium upgrade for universal in-ear monitors. It features silver-plated oxygen-free copper wire with 8 braids, 65 strands of 44AWG wire, low microphonics, and angled 2-pin connectors.

Originally released with the U18s, 64 Audio's 8-Braid Silver Cable is a perfect choice for anyone wanting to upgrade their IEM cable while keeping things in the 64 Audio product family.

Specifications

• Pure Silver-Plated Oxygen Free Copper
• 65 Strands of 44 AWG wire
• 28Ω
• Low microphonics
• 0.78 2-pin connector

64 Audio Nio Takes Reference-Quality Bass and Cranks it to 11 for an Exhilarating Listening Experience

• 9 Driver Hybrid with (8x) BA and (1x) DD
• Features 64 Audio's Tia®, LID® and Apex® proprietary tech
• Despite the powerful bass, Nio provides detail, separation and definition across the full frequency spectrum
• Ergonomic shell, machined out of solid aluminum

64 Audio Nio

Nio is 64 Audio's first high driver-count hybrid UIEM featuring a 9mm dynamic driver and 8 balanced armature drivers. The drivers and other patented components are housed in an ergonomic shell machined out of solid aluminum. Similar to some of their other unique faceplates, Nio is finished with a naturally sourced striking blue abalone faceplate making each pair truly unique.

Sound Signature

With a sound signature characterized by extended lows and a rich 3-dimensional soundstage, Nio’s smooth treble and natural warmth will provide hours of enjoyable listening for all genres of music. With the included variety of tips and apex modules you can take Nio from a saturated tube-like warmth all the way to a neutral reference monitor tonality.

Featured Technology

Tia
Tubeless In-Ear Audio (tia) is a patented IEM design methodology that aims to reduce unwanted resonance and distortion for a transparent and lifelike sound signature. The tia system is comprised of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. Nio features two major elements of the tia system: the tia driver and the tia single-bore design.

Apex
Air Pressure Exchange (Apex) is a patented vent that releases air pressure in a sealed ear canal all while retaining standard IEM levels of isolation; enabling musicians and music enthusiasts to listen more comfortably for longer. This venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex comes in three module variations for Nio: mX, m15 and m20.

LID
Linear Impedance Design (LID) is a patented circuit that corrects the non-linear electrical resistance of the multiple driver-sets comprising this 9 driver IEM. Varying source amplifier output impedance in devices like smartphones, body packs, DAC/amps, and DAPs typically results in varying frequency response across them, depending on the increase in resistance. Restoring proper interaction with the source and preserving the desired sound signature enables a consistent reliable sound.

64 Audio Buyer's Guide

Specifications

• Driver
  • (1x) tia High
  • (1x) High-Mid
  • (6x) Mid
  • (1x) Dynamic Low
• Frequency Response: 10Hz – 20kHz
• Sensitivity: 105 dB/mW
• Crossover: Integrated 4-way Passive
• Impedance: 6 ohms
• Apex Technology Isolation: -20dB, -15dB, -10dB

In the Box

• Nio Universal In-Ear Monitors
  
• Premium Leather Case
  
• Cleaning Tool
  
• Shirt Clip
  
• TrueFidelity Foam Eartips (S,M,L)
  
• Silicone Eartips (S,M,L)
  
• 48" Detachable Premium Cable
  
• Apex Modules: m20, m15, mX
• Round Sticker
  
• Product Manual

The N8, or "Nate," is an industry-first signature in-ear monitor developed in collaboration with legendary bassist and producer, Nathan East. This hybrid in-ear monitor offers unique textures and rich, soulful sound. It's powerful lows and deep, airy sub-bass define the sound signature, making it a favorite among multi-instrumentalists, audiophiles, engineers, and, of course, bassists.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specs

Experience an Addictive, Imminently Listenable Tuning and Strong Overall Performance with 64 Audio's Duo Hybrid IEM

• 2-driver hybrid Universal with (x1) Dynamic and (x1) Tia®
• Semi-open back Universal IEM
• Built with the complete 64 Audio technology arsenal: Tia, Apex Core, Wave Sync, and LID
• Includes black premium Silver-plated OCC Copper cable in 3.5mm

From 64 Audio

64 Audio’s Duo is a dual-driver hybrid design. Built with the complete Tia System, Apex Core, Wave Sync, and LID, Duo presents 64 Audio’s signature balanced sound in a whole new way. The simple audio design captures the listener’s auditory senses while forgetting they’re wearing IEMs in the first place.

The complex faceplate assembly not only serves an important role in protecting the shell of the IEM while allowing air to flow freely, it is also a major step in 64 Audio’s product design evolution. Duo is a timeless and elegant design reminiscent of open-back over-ear headphones.

Sound

Duo feels light, leaving your ears feeling open and relaxed even for long listening periods. You feel simultaneously connected to your physical surroundings while you’re enveloped by music. Relaxed tonality lets you put them on and get lost. It’s able to present a non-analytical top-end while retaining air and sizzle. The vast open air sensation supports an unobstructed soundstage with impactful center imaging (unlike many other open back headphones) as well as no loss of bass. Duo effortlessly produces deep and rich low frequencies with plenty of sub bass.

Technology

Exclusive technologies that challenge traditional in-ear monitor designs to give you the absolute best listening experience. Duo features the following unique technology:

tia®
Rather than constricting the sound of the drivers by fitting a tube onto them, Duo’s complete Tia System reduces unwanted resonance and distortion by allowing the 9mm Dynamic Driver + Tia High Driver to radiate freely into the single large Tia bore with no obstructions to the front of the drivers.

apex® core
Apex Core is a deeper understanding of air movement within an earphone system. Duo’s faceplate features a striking perforated grill that leaves the shell of the IEM open to the outside atmosphere for a less obstructed airflow resulting in an effortless reproduction of music and minimal physical fatigue.

wave sync
Due to the high crossover point between the two drivers, Wave Sync was developed to ensure coherence; another industry first. By using a type of “all-pass” filter, we’re able to introduce a crossover while correcting for time without having to change the physical distance between the drivers.

Specifications

• Driver Arrangement: (x1) Dynamic + (x1) Tia® Balanced Armature
• Frequency Response: 20Hz – 20kHz
• Sensitivity: 98dB/mW (98dB @ 1kHz @ 1mW (95mV)
• Impedance: 9Ω
• Crossover: Integrated 2-way passive
• Isolation: -12dB internal apex technology

In the Box

• Duo UIEMs
• 64 Audio premium Leather case
• TrueFidelity foam eartips (S,M,L)
• SpinFit silicone eartips (S,M,L)
• Silicone eartips (S,M,L)
• Black 3.5mm terminated cable
• Round sticker

Bring the On Stage Experience Home With 64 Audio Aspire 4

• Four-driver hybrid IEM tuned to provide the clarity and detail artists need for the stage combined with the musicality and engagement listeners crave
• Simplified shell offers an easy lightweight fit
• Apex Core provides pressure release for great bass response and long listening sessions
• Waveguide technology delivers perfectly balanced treble with all the detail and extension and a non-fatiguing sound

Performance Monitoring for Artists, Engaging Listening for Fans

Monitor your performance with 64 Audio's professional UIEMs specifically designed for musicians and live music professionals. Whether you're just getting into monitoring with in-ears, not ready for customs, need a backup set, or simply prefer generic fitting products, Aspire 4 offers best-in-class sound and ergonomics.

Aspire 4 is a performance monitoring tool with the same sonic characteristics and technology worn by the world's greatest performing artists. The new form factor prioritizes ergonomics without sacrificing performance. Aspire was designed and engineered by the same innovative team responsible for developing the industry defining audio gear for which 64 Audio is known.

World Class Sound

With live music at the forefront of 64 Audio's tuning criteria, should they focus on creating a highly accurate, unforgiving studio monitor or a contoured device that assists musicians with hearing themselves more effectively? As with many of 64 Audio's monitoring tools, the answer is somewhere in the middle. Huge bass that can reproduce some of the toughest frequencies in the audible spectrum with quick ease, forward mids that are precisely elevated for articulation in the most vital region of instruments and voices, and plenty of top end sparkle really separate Aspire 4 from any other UIEM in its class, making this powerful sound signature a perfect blend of accuracy and musicality.

Apex Core

64 Audio's patented technology is seamlessly integrated into the body of the earphone. The pressure relieving channel provides controlled venting via acoustic filters. Aspire 4 users get the benefits of 64 Audio's flagship technology with -20dB of isolation combined with ear saving venting.

Waveguide

Custom designed acoustic structure integrated onto the high-frequency balanced armature increases the driver's efficiency by directing and focusing its energy for a crisp and clear sound. Waveguide offers a taste of 64 Audio's flagship tia technology in a more accessible package.

Specifications

• Transducer Configuration
  • (x1) Dynamic driver (Lows)
  • (x2) Balanced Armature drivers (Mids)
  • (x1) BA driver (Highs)
• Frequency Response: 20Hz – 18kHz
• Sensitivity: 104 dB/mW @ 1kHz @ 1mW (94mV)
• Impedance: 11Ω @1kHz
• Crossover: Integrated 3-way passive crossover
• Isolation: apex core -20dB
• Cable: 48" IPX Pro Cable
• 64 Audio 1 Year Warranty

In the Box

• 64 Audio Aspire 4 IEMs
• 48" IPX Pro cable with 3.5mm termination
• 3.5mm to 6.3mm adapter
• 64 Audio Zipper case
• Silicone ear tips + Foam ear tips (S/M/L)
• Cleaning tool

Aspire 3 is a Three-Driver IEM with a Balanced Sound Signature, Complemented by a Full-Bodied Mid-Range and Wide Soundstage

• Third IEM in the new 64 Audio Aspire Series lineup
• Crafted with (1x) DD + (2x) BA driver
• Apex Core provides pressure release for great bass response and long listening sessions
• Waveguide technology delivers perfectly balanced treble with all the detail and extension and a non-fatiguing sound
• Corrective circuit eliminates sound variance between a number of sources
• Check out our measurement of Aspire 3

Aspire Series

Aspire Series IEMs empower musicians to monitor their performances with the same sonic excellence and industry-shaping technology used by some of the world's greatest performers. Whether you're just getting into in-ear monitoring, not ready for customs, need a back-up set or simply prefer universal-fit products, Aspire Series UIEMs are designed to accommodate the widest range of ears.

In addition to their crowd-pleasing ergonomics and fit, the four models offer distinct variations of sound signatures, within neutral preference bounds, to suit any musician or singer.

Aspire 3

Aspire 3's balanced sound signature is complemented by a full-bodied mid-range and wide soundstage built into a form-factor that prioritizes ergonomics without sacrificing technical capabilities. All designed and engineered by the innovative team responsible for the industry standard audio gear that 64 Audio is famous for.

Three-Driver IEMs

Aspire 3 houses a carefully refined three-driver design that strikes the perfect balance between energy and precision. Its hybrid configuration features a dynamic driver for lows, a balanced armature for mids, and another balanced armature for highs.

While the bass remains rich and robust, the mids take center stage, adding extra body to vocals and instruments. Aspire 3 also integrates a custom high-frequency waveguide, further shaping its balanced frequency response to ensure clarity and articulation where it matters most.

Technology

apex core
64 Audio's patented technology is seamlessly integrated into the body of the earphone. The pressure relieving channel provides controlled venting via acoustic filters. Aspire 3 users get the benefits of 64 Audio's flagship technology with -20dB of isolation combined with ear saving venting.

waveguide
waveguide is a designed acoustic structure integrated onto the high-frequency balanced armature driver. Unique in its shape and implementation, this waveguide increases the driver's efficiency by directing and focusing its energy for a crisp and clear sound.

LID
Linear Impedance Design is a patented circuit that corrects non-linear electrical resistance across multiple driver-sets. Inconsistent impedance across varying devices/sources often results in varying frequency response. Restoring proper interaction with the source enables consistent, reliable sound.

Specifications

• Frequency Response: 20Hz-18kHz
• Sensitivity: 107dB @1kHz @1mw
• Impedance: 12 Ω @1kHz
• Isolation: -20dB
• Material: Molded ABS shell + Stainless Steel nozzle
• 64 Audio 1 Year Warranty

In the Box

• Aspire 3 IEMs
• Carry case
• Foam + Silicon ear tips
• IPX cable
• Cleaning tool
• 1/4" adapter

Aspire 2 is a Two-Driver IEM with a Bass-Forward Sound Signature, Complimented by Extended Highs

• Second IEM in the new 64 Audio Aspire Series lineup
• Crafted with (1x) DD + (1x) BA driver
• Apex Core provides pressure release for great bass response and long listening sessions
• Helmholtz Resonator eliminates resonance by targeting frequencies for optimum tuning
• Corrective circuit eliminates sound variance between a number of sources
• Check out our measurement of Aspire 2

Aspire Series

Aspire Series IEMs empower musicians to monitor their performances with the same sonic excellence and industry-shaping technology used by some of the world's greatest performers. Whether you're just getting into in-ear monitoring, not ready for customs, need a back-up set or simply prefer universal-fit products, Aspire Series UIEMs are designed to accommodate the widest range of ears.

In addition to their crowd-pleasing ergonomics and fit, the four models offer distinct variations of sound signatures, within neutral preference bounds, to suit any musician or singer.

Aspire 2

Aspire 2's bass-forward sound signature is complemented by extended highs and wide soundstage built into a form-factor that prioritizes ergonomics without sacrificing technical capabilities. All designed and engineered by the innovative team responsible for the industry standard audio gear that 64 Audio is famous for.

Two-Driver IEMs

A dual-driver system with a two-way crossover system provides increased flexibility in tuning. By leveraging the unique characteristics of both dynamic and balanced armature drivers, Aspire 2 delivers focused low-end impact alongside details mids and highs. Additionally, its integrated Helmholtz Resonator technology helps achieve a forward low-end presentation with an elevated high-frequency response without harshness.

Technology

apex core
64 Audio's patented technology is seamlessly integrated into the body of the earphone. The pressure relieving channel provides controlled venting via acoustic filters. Aspire 2 users get the benefits of 64 Audio's flagship technology with -20dB of isolation combined with ear saving venting.

Helmholtz Resonator
3D Printed micro-cavities operate by forcing air in and out, causing the air inside to resonate at a specific frequency. By precisely determining the dimensions of the cavity and its neck, we can target a very narrow resonant frequency to amplify or diminish.

LID
Linear Impedance Design is a patented circuit that corrects non-linear electrical resistance across multiple driver-sets. Inconsistent impedance across varying devices/sources often results in varying frequency response. Restoring proper interaction with the source enables consistent, reliable sound.

Specifications

• Frequency Response: 20Hz-10kHz
• Sensitivity: 103dB @1kHz @1mw
• Impedance: 13 Ω @1kHz
• Isolation: -20dB
• Material: Molded ABS shell + Stainless Steel nozzle
• 64 Audio 1 Year Warranty

In the Box

• Aspire 2 IEMs
• Carry case
• Foam + Silicon ear tips
• IPX cable
• Cleaning tool
• 1/4" adapter

Aspire 1 is a Single-Driver IEM Engineered for Balanced Sound, Deep Bass, and a Wide Soundstage, Offering Pro-level Performance in an Ergonomic Design

• First IEM in the new 64 Audio Aspire Series lineup
• Crafted with a single dynamic driver
• Apex Core provides pressure release for great bass response and long listening sessions
• Helmholtz Resonator eliminates resonance by targeting frequencies for optimum tuning
• Check out our measurement of Aspire 1

Aspire Series

Aspire Series IEMs empower musicians to monitor their performances with the same sonic excellence and industry-shaping technology used by some of the world's greatest performers. Whether you're just getting into in-ear monitoring, not ready for customs, need a back-up set or simply prefer universal-fit products, Aspire Series UIEMs are designed to accommodate the widest range of ears.

In addition to their crowd-pleasing ergonomics and fit, the four models offer distinct variations of sound signatures, within neutral preference bounds, to suit any musician or singer.

Aspire 1

Aspire 1's balanced sound signature is complemented by deep bass and wide soundstage built into a form-factor that prioritizes ergonomics without sacrificing technical capabilities. All designed and engineered by the innovative team responsible for the industry standard audio gear that 64 Audio is famous for.

Single-Driver IEMs

64 Audio's decades of combined experience in performance monitoring distilled into its purest form: a single-driver in-ear monitor. Aspire 1's full-range dynamic driver is precisely tuned using multiple Helmholtz Resonators, integrated into its 3D-printed housing, to deliver a bass-forward interpretation of 64 Audio's balanced sound signature.

Technology

apex core
64 Audio's patented technology is seamlessly integrated into the body of the earphone. The pressure relieving channel provides controlled venting via acoustic filters. Aspire 1 users get the benefits of 64 Audio's flagship technology with -20dB of isolation combined with ear saving venting.

Helmholtz Resonator
3D Printed micro-cavities operate by forcing air in and out, causing the air inside to resonate at a specific frequency. By precisely determining the dimensions of the cavity and its neck, we can target a very narrow resonant frequency to amplify or diminish.

Specifications

• Frequency Response: 20Hz-18kHz
• Sensitivity: 106dB @1kHz @1mw
• Impedance: 30 Ω @1kHz
• Isolation: -20dB
• Material: Molded ABS shell + Stainless Steel nozzle
• 64 Audio 1 Year Warranty

In the Box

• Aspire 1 IEMs
• Carry case
• Foam + Silicon ear tips
• IPX cable
• Cleaning tool
• 1/4" adapter

The in-ear monitor of choice for many touring musicians and discerning music lovers. The A6t offers detailed highs, smooth mids, defined lower-mids, and deep lows. Multi-instrumentalists, engineers and audiophiles can expect great extension and more headroom from this model.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

Tia
A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specs

The perfect in-ear monitor for anyone looking for a balanced, full-spectrum sound. The A4t delivers an immersive listening experience with a dynamic mid-range and powerful bass. It's a great option for single-instrumentalists and moderate mixes.

The A4t is the entry point for our exclusive tia™ technology, which provides an amazingly lifelike clarity and musicality to the sound signature.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specs

64 Audio is proud to introduce our newest four driver custom in-ear monitor, A4s. This complete redesign of our four driver platform is elevated by the Dynamic low frequency driver, making this 64 Audio’s second hybrid custom IEM. Along with that major update, inside A4s is our Tia technology, LID and our patented Apex and 3Dfit tech. While this is targeted at musicians looking for a rich enveloping monitoring experience, the frequency response, detail, and soundstage capabilities of A4s exceed other audiophile products at almost any price point.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

Tia

A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specs

A3t is 64 Audio’s newest three driver custom fit in-ear monitor. In typical 64 Audio fashion we continue to make our revolutionary technology more and more accessible. With A3t our Tia technology is available at a new lower price point, along with LID and our patented Apex and 3Dfit tech. The goal with A3t was simple: make a reference monitor that rivals products more than 5x its price, this simple yet powerful arrangement of balanced armature drivers and crossover components achieves that perfectly. This is a perfect tool for any audio engineer or musician looking for a neutral, balanced and musical reference monitor for live and recorded performance.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

Tia

A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specs

Transducer Type Balanced Armature

Transducer Configuration 1 BA low, 1 BA mid, 1 tia high

Bore Configuration Single

Frequency Response 20Hz – 20kHz

Sensitivity 109dB/mW (105mV) @ 1kHz

Impedance 11Ω @ 1kHz

Crossover Integrated 3-way passive crossover

Isolation 20dB w/ m20 module, -15dB w/ m15 module. Ships with M20 Module standard

Our versatile, three-driver custom in-ear monitor provides impressive clarity and warmth for any instrument or genre. The A3e is ideal for vocalists, drummers, or any single-instrumentalists looking for a professional IEM to use onstage. This is a great option for artists seeking a detailed soundstage, neutral tuning, and a transparent and musical sound.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specs

The most advanced two-driver custom in-ear monitor on the market. The A2e is ideal for emerging artists, bands, and anyone seeking a professional in-ear monitor at an affordable price. Its dual-drivers offer a balanced sound signature with clear highs, and capable mids and lows.

New and improved for 2018, the A2e now features LID™ for consistent sound across sources.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

Lid
Enables a consistent, reliable sound regardless of audio source.

Specs

Packed with an unbelievable 18 balanced armature drivers per ear, the A18t is our top-of-the-line reference in-ear monitor. This industry-first design pushes the limits of what a reference monitor can be with incredible detail, extension, and unmatched clarity across all frequencies with a powerful low-end and extended sub-bass. The A18t is preferred by critical listeners in engineering, monitoring and mixing, and audiophiles.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

This model is also available as a Universal IEM, the U18t

Tia
A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specs

Designed for professionals on stage and in the studio, the A18s is the final authority on flagship in-ear monitors that boast elite performance. Based on the world’s first 18-driver earphone, it provides the clarity and precision necessary for sound engineering with the warmth, power, and headroom demanded by musicians taking the stage.

Now including LID technology the A18s is our most capable and versatile in-ear monitor ever created.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

This model is also available as a Universal IEM, the U18s.

Specs

In the Box

• A18s Custom In-Ear Monitors
• 64 Audio Personalized Protective Case
• Dehumidifier
• Cleaning Tool
• Shirt Clip
• 48" or 64" Detachable Professional Cable
• m20 apex Modules
• m15 apex Modules
• Round Sticker
  

The ultimate in-ear monitor for professionals onstage or in the studio. The A12t does it all, delivering detailed highs, distinguished upper and lower mid-range detail, a clean bass response, and strong sub-bass. Offering reference-level detail, this IEM is among the best for multi-instrumentalists, engineers, sound monitors, and audiophiles.

These are CUSTOM earphones from 64 Audio

Current lead time is 4 weeks from the time 64 Audio receives the impressions. You need to visit an audiologist to get your ear impressions made first. By purchasing from Bloom, you receive our attentive lifetime support. We'll assist during each step of the process. Keep in mind, all custom earphones orders are final.

For more information about ordering customer IEMs, check out our Custom IEMs Guide or watch our video on Getting Custom IEMs. Feel free to Call, Email, or Message us if you have any questions about ordering custom IEMs.

This model is also available as a Universal IEM, the U12t.

Tia
A tubeless design that reduces resonance for a transparent and lifelike sound signature.

Apex
Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

LID
Enables a consistent, reliable sound regardless of audio source.

Specs