Auris Audio Ultima 88 – The Ultimate Headphone Amplifier

Experience High-Fidelity Sound with Dynamic Tube Amplification

Auris Audio Ultima 88 is a meticulously engineered high-performance headphone amplifier, designed to deliver a powerful, dynamic, and immersive listening experience. Utilizing KT88 vacuum tubes, the Ultima 88 offers a distinct sound signature compared to its renowned sibling, the Headonia 300B, catering to audiophiles who crave an energetic and authoritative sonic character.

Whether paired with low- or high-impedance headphones, the Ultima 88 provides unmatched versatility, ensuring every detail of your music is reproduced with absolute precision.

KT88 Tube Power for a Dynamic and Engaging Sound Signature

The Ultima 88’s KT88 tube-driven design sets it apart, offering powerful bass extension, articulate midrange, and crisp highs. The high-power output ensures it can drive even the most demanding headphones, delivering 8.6W of pure tube-driven energy while maintaining low distortion levels.

With a maximum output voltage ranging from 16.6V (32Ω) to 51V (300Ω), the Ultima 88 ensures optimal signal transfer, whether you’re using high-sensitivity or planar magnetic headphones.

Precision Impedance Matching for Optimal Performance

A dedicated impedance selector switch allows users to fine-tune the amplifier’s output to match headphones from 32Ω to 600Ω. This ensures that each pair of headphones receives the ideal power distribution, maximizing clarity and tonal balance across different impedance loads.

Exceptional Build Quality with Premium Components

Auris Audio has constructed the Ultima 88 with uncompromising attention to detail, utilizing high-end materials and precision-engineered components to deliver the ultimate audiophile experience.

• CNC-Milled Aluminium Chassis – A robust, interference-resistant build that minimizes vibrations and enhances signal purity.
• Japanese Alps Potentiometers – Ensuring precise volume control and minimal signal degradation.
• German-Made Mundorf Capacitors – Delivering superior signal clarity and tonal accuracy.
• Lundahl Transformers – On balanced inputs, providing enhanced signal integrity and noise rejection for an exceptionally clean sound.
• Hand-Wound Output Transformers – Custom-wound with high-purity Serbian copper wire, engineered for optimal current flow and detailed harmonic reproduction.

Versatile Connectivity for Every Audio Setup

The Ultima 88 is built for maximum flexibility, offering both balanced and single-ended inputs, ensuring seamless integration into any high-end audio system.

• Balanced (XLR) and Single-Ended (RCA) Inputs – Connect your DACs, turntables, or preamps with uncompromised signal quality.
• 6.3mm and 4-Pin XLR Headphone Outputs – Compatible with a wide range of headphones, from dynamic drivers to planar magnetics.
• Preamp Output – Allows connection to external power amplifiers or active speakers, turning the Ultima 88 into a high-fidelity tube preamplifier.

High-Fidelity Sound with Ultra-Low Distortion

Engineered for audiophile-grade sound quality, the Ultima 88 maintains an exceptionally clean signal path, ensuring low noise, high headroom, and superb channel separation.

• Total Harmonic Distortion + Noise (THD+N) – Maintains 0.5% at low gain (100mW), 2% at 1W output, and 5.8% at high gain (8.6W) for a natural, musical presentation.
• Signal-to-Noise Ratio (SNR) >90dB – Guarantees a black background, allowing even the most delicate details to emerge without unwanted noise.
• Flat Frequency Response (±0.35dB) – Ensures accurate sound reproduction across the entire frequency spectrum, maintaining the integrity of every note.

Elegant Aesthetics with Timeless Design

Designed as both an audiophile statement piece and a high-performance amplifier, the Ultima 88’s sleek aluminium chassis blends seamlessly into any premium headphone setup. Its combination of precision craftsmanship and classic tube amplification aesthetics makes it a standout centrepiece for any listening environment.

Elevate Your Audio Experience with Auris Audio Ultima 88

Designed for serious audiophiles, the Auris Audio Ultima 88 redefines tube amplification, combining premium craftsmanship, exceptional component quality, and high-output KT88 tube power to deliver an unparalleled headphone listening experience.

Take your music to new heights with the Ultima 88—because you deserve nothing less than the best in high-fidelity audio.