Auris Audio

The Ultima KT88 Tube Amplifier Combines Elegant Design With Impressive Audio Performance

• Clearance Items are Final Sale and Non-Returnable
• Features dynamic and powerful KT88 power tubes
• Built-in impedance selector switch ensures optimal performance
• Hand-wound transformers with copper wire sourced from Serbia
• Offers both balanced and single-ended inputs for connection flexibility
• Elegant addition to any audio setup with sleek and modern design

Ultima KT 88

Experience the next level of audio performance with the Ultima KT 88, an amplifier designed for audiophiles who crave a dynamic sound signature. Powered by KT88 tubes, the Ultima KT 88 delivers ample power to drive any headphones, offering a distinctly different sound profile from its older sibling, the Headonia 300B.

KT88 Tubes

The KT88 tubes are renowned for delivering powerful bass response, smooth midrange, and detailed highs. KT88 tubes are fast, dynamic, and aggressive, making them ideal for symphonic orchestras, pop, rock, and blues. Every note is rendered with clarity and precision, making the Ultima KT 88 perfect for discerning audiophiles and professionals alike.

Excellence in Tube Technology

Tube amplifiers without an impedance selector can suffer from compromised performance, but the Ultima KT88 eliminates this issue entirely. With perfect impedance matching, it ensures faithful sound reproduction across the full frequency spectrum—whether you’re using 32Ω or 600Ω headphones. Unlike other amps that introduce distortion at extreme frequencies, the Ultima KT88 preserves every detail, delivering pristine, dynamic audio with exceptional clarity and precision.

Build Quality

Crafted with the same meticulous attention to detail as the Headonia 300B, the Ultima 88 features a sturdy chassis made from milled aluminum, minimizing interference and vibrations to deliver pristine audio.

High-Quality Components

The Ultima KT 88 is equipped with top-tier components, including precision Japanese Alps potentiometers, German-made Mundorf capacitors and Lundahl transformers on balanced inputs for enhanced sound quality.

The output transformers are hand-wound in-house with high-quality copper wire sourced from Serbia, ensuring exceptional sound quality tailored to your headphones.

Versatile Connectivity

The Ultima KT88 offers multiple input options, allowing it to connect easily to various audio sources, including digital and analog devices. This versatility makes it suitable for both home audio systems and more complex setups.

Specifications

• Analog Inputs: (2x) RCA, (1x) XLR
• Analog Outputs: (1x) 6.3mm, (1x) XLR
• Tubes: KT88
• Full List of Specifications

The Nirvana 6 is the Successor to the Previous Nirvana Models, With Several Enhancing Improvements

• Clearance Items are Final Sale and Non-Returnable
• Stylish, full-sized tube headphone amplifier
• Features upgraded 6CA7 tubes
• Integrated tube timer, allowing users to track each tube's hourly use
• Large graphic OLED display added
  

Nirvana 6

The Auris Audio Nirvana 6 is a premium tube headphone amplifier known for its exceptional sound quality and robust design. It features a fully balanced architecture and utilizes high-quality components, including vacuum tubes to deliver a warm, rich audio experience. The Nirvana 6 provides a dynamic, well-layered sound with remarkable clarity and warmth, making you feel as if you’re in a concert hall.

Tubes

Instead of EL34 tubes used in the previous models, the Nirvana 6 is equipped with 6CA7 tubes from the ART series by PS Vane. The tubes from this series are known for their distinctive sound and high-quality construction. These tubes are often favored in audio applications for their warm, rich tonal characteristics, making them ideal for enhancing the warmth and depth of music.

PS Vane's Art Series focuses on both performance and aesthetics, offering tubes that not only sound great but also feature a visually appealing design. The EL34s provide a balanced and powerful output with a smooth midrange and detailed high frequencies. Their reliability and longevity further add to their appeal, making them a popular choice among audiophiles and music enthusiasts looking to elevate their listening experience.

Now integrated in the Nirvana 6 is an innovative tube timer. The tube timer allows users to track how many hours each tube has been in operation. It can reset when changing any of the tubes. 

Design

The Nirvana 6 showcases a refined and modern look, which a sleek chassis. The attention to detail in the finish and overall build quality contributes to its premium appeal. The sides of the amplifier are covered with artificial leather. A large graphic OLED display has been added to further enhance user experience.

Unlike its predecessors, the Nirvana 6 tube amplifier is now confined in one box, creating a more minimal overall look.

Enhanced Features

Mute Function
The Nirvana 6 features a mute function with a returning potentiometer (motor-driven potentiometer).

Upgraded Output Transformers
The upgraded output transformers included in the amplifier are designed to handle power more efficiently. The result is often found in better frequency response, increased clarity, and a more natural sound.

Wide Range of Headphone Support
Nirvana 6 can effortlessly drive headphones from 32 to 600 Ohms, making it suitable for dynamic and planar magnetic headphones alike.

Specifications

• Tubes: (1x) ECC82, (2x) 6CA7
• Amplifier Configuration: Single Ended
• Input Sensitivity: 1V
• Power Output Max: 4W
• Output Impedance: 32 Ω/80 Ω/150 Ω/300Ω & 600Ω
  
• Analog Inputs: (3x) Line
• Analog Output: (1x) Line
• Dimensions: 12"x16.5"x10"
• Weight: 32.4lbs
• Full List of Specifications

In the Box

• Auris Audio Nirvana 6 Headphone Amplifier
• Full set of stock tubes
• Remote
• User manual
• Warranty card

Unveiling Headonia 300B, an Amplifier That Not Only Surpasses it's Predecessors But Sets a New Benchmark in Reference Amplification

• Clearance Items are Final Sale and Non-Returnable
• Features 300B tubes in a single-ended configuration, producing warm, rich sound
  
• Adjustable output impedance for optimal performance with various headphones
• Features Japanese Alps potentiometers, German Mundorf capacitors, and Lundahl transformers
• Offers preamp output and headphone jacks in both 6.3mm and XLR
• Robust anti-vibration, Aluminum chassis (8-10mm thickness)
• Exudes vintage charm, timeless design and classic tube glow

Headonia 300B

Ten years after the pioneering Headonia 2A3 and four years since its production ended, Auris Audio introduces the Headonia 300B, setting a new standard in reference amplifiers. The Headonia 300B meets rising demands for high-powered headphones, ensuring optimal performance across various impedance levels without compromising sound quality.

Excellence in Tube Technology and Sound

When it comes to tube amplifiers, the absence of an impedance selector can significantly hinder performance. The Headonia 300B's impedance selection feature means seamless matching with a design that avoids distortion and preserves sound fidelity across frequencies, ensuring each audio detail is captured. Optimal impedance alignment allows the Headonia 300B to reproduce music with exceptional accuracy and clarity, ideal for audiophiles and professionals alike. Whether you're using headphones with an impedance of 32 or 600Ω, the 300B ensures that every nuance of the music is faithfully reproduced from the source to your ears.

This focus on impedance matching isn’t just technical—it’s essential to the Headonia 300B’s performance. By optimizing tube operation and reducing distortion, it provides an accurate and faithful listening experience, ideal for both audiophiles and sound professionals.

Audiophile-Grade Sound and Construction

The Headonia 300B showcases Auris Audio’s commitment to high-quality craftsmanship. Its thick, milled Aluminum chassis blocks interference and dampens vibrations, while the rubber-metal feet enhance stability for clean audio. Premium components like Alps potentiometers and Mundorf capacitors maintain signal clarity, delivering precise volume control and dynamic sound. Additionally, Lundahl transformers on the balanced inputs further elevate audio fidelity, creating a transparent, immersive experience. With these features, the Headonia 300B achieves an exceptional level of audio performance for audiophiles and music enthusiasts alike.

Core Features

Tube Amplification
The Headonia 300B features a classic tube amp design, utilizing a pair of 300B tubes in a single-ended configuration. These tubes are renowned for their rich, warm, natural sound signature, delivering a harmonically rich audio experience.

Impedance Matching
The Headonia 300B includes an impedance selector switch for the output transformer secondaries. This feature allows users to match the amplifier's output impedance to that of their headphones, ensuring optimal performance and quality across a range of headphones.

Premium Build Quality
Meticulously detailed, the Headonia 300B boasts a chassis made from milled Aluminum with a thickness of 8-10mm. This sturdy construction minimizes interference and vibrations, providing a stable platform for audio delivery. The amp also features rubber/plastic/metal sandwich legs, further reducing vibrations.

High-Quality Components
Auris Audio has integrated components of the highest caliber into the Headonia 300B. This includes precise Japanese Alps potentiometers, German-made Mundorf capacitors, and Lundahl transformers on balanced inputs, enhancing sound quality and delivering an immersive experience.

Balanced and SE Inputs
The Headonia 300B offers both balanced and single-ended inputs, providing flexibility for connecting various audio sources. The balanced inputs ensure optimal signal integrity and noise rejection, while the SE inputs offer compatibility with a wide range of devices.

Versatile Connectivity
In addition to its inputs, the 300B also features a preamp output, allowing users to connect to external power amps or speakers for a complete audio system setup. The amplifier is also equipped with both 6.3mm and 4-pin XLR headphone outputs.

Specifications

• Analog Inputs: (2x) RCA, (1x) XLR
• Analog Outputs: (1x) 6.3mm, (1x) XLR
• Pre Out Outputs: (1x) RCA, (1x) XLR
• Tubes: (2x) 300B, (2x) CV181/6SN7
• Max Power Output: 7W
• Output Impedance: 32/80/150/300/600 Ω
• Dimensions: 18.11" x 17.32" x 12.20"
• Headphones:
  • SE Out, BAL Out
    • Max Power: 7W
    • 32Ω = 15V
    • 80Ω = 23.5V
    • 150Ω = 32.5V
    • 300Ω = 46V
    • 600Ω = 65V
• THD+N: 0.45% dB at 1W
• Frequency Response: ±0.45 dB at 1W
• SNR: 100dB
• Input Sensitivity:
  • SE: 0.8V
  • BAL: 1.6V
• Pre Out:
  • Max Output Voltage: 17V
  • THD+N: 0.06% for VOL<20 [Vout=7V]
  • Frequency Response: ±0.2 dB for VOL<20 [Vout=7V]
  • SNR: 200dB

A Star Reborn, the Auris HA-2SE+ Balanced Tube Headphone Amp is the Successor to the Famous HA-2SE and Ready to Soar!

• Clearance Items are Final Sale and Non-Returnable
• (x4) PL95, (1x) ECC81 tubes
• Features built-in impedance selector
• Features Pre Out option, multiple inputs, and integrated power supply
• Delivers stunning sound and exceptional audio quality

HA-2SE+

The HA-2SE was one of the best-selling devices from the Auris product range which launched Auris Audio to the very top of the world when it comes to the headphone amplifiers. After many years of “flow”, the company stopped producing this particular amp in the end of 2019.

The HA-2SE gets its successor that will have similar basis and price range but with a lot of improvements and additions compared to its predecessor. As the main feature, it is adorned with a balanced input and output.

Amplifier

Auris HA-2SE + is a balanced single-ended headphone amplifier. The lineup of tubes is classic Auris, with the use of four 7-pin Ei PL95 pentode power NOS (new old stock) tubes, which are the equivalent to 6DL5, and a single ECC81 dual-triode input tube, also known like 12AT7.

Transformers are the essence of quality, and therefore products of Auris Audio contain only manually wound transformers on a double C core produced by Auris Audio. Every single transformer is manufactured in compliance with strictly defined requirements, thus providing almost a linear characteristic in the whole acoustic/sound range.

Design

On the front panel, from left to right, you have the On/Off Switch, input line selector, and 4-pin XLR balanced output. In the middle is the main volume control knob and right next to it is the 6.3 mm single ended headphone output. On the right side is the Headphone inpedance selector at 50/150/300/600 Ohm.

On the top of the unit you have the five tubes (4 x PL95 and 1 x ECC81) that are centered on the design and they’re protected with a little grill, separating them from the controls.

On the back of the unit from left to right you can find the XLR and two RCA inputs, as well the pre output. In the middle is the Tube EL 95 or PL 95 switch. On the right side is the input voltage selector, power cord inlet and the On/Off switch.

Impedance Selector

To make your headphones shine at their best, Auris Audio designed the HA-2SE+ with an impedance switch, which allows you to select 50/150/300/600 Ohm according to the type of your headphones.

Tubes

Vacuum tubes used in Auris Audio products are subject to individual testing and internal inspection, so that only selected and match-paired tubes of the best features are incorporated in our products.

The Auris HA2-SE of course is a tube amp and it uses four PL95 or EL95 power tubes together with an ECC81 input tube. The EL and PL95 tubes can both be used in the amplifier and you only have to flick the switch on the back as these tubes have different heater ratings.

Specifications

• Tubes: (1x) ECC81, (4x) PL95 (or EL95)
• Tube Select: Manual switch
• Input Sensitivity: 1 Vrms
• Input Impedance: 470k
• Power Output Max: 1 W
• Output Impedance: 50 | 150 | 300 | 600 Ω
• SNR: 110dB
• Analog Inputs: (2x) RCA, (1x) XLR
• Analog Outputs: (1x) 6.3mm, (1x) XLR
• Dimensions: 12.2" x 14.2" x 7.7"
• Weight: 21.6 lbs
• Cables: Not included
• User Manual