ONIX Zenith XDA20 High End DAC/Headphone Amplifier - Black

Editor’s Choice 2025 – The Absolute Sound

Highly Recommended – Hi-Fi Choice (2025)

Pure Sound, Elevated Control

The Zenith XDA20: A Benchmark DAC and Headphone Amp for Serious Listening

Designed for the Discerning Ear

The ONIX Zenith XDA20 High-End DAC and Headphone Amplifier delivers reference-grade digital-to-analog conversion and precision headphone amplification in a single, elegant chassis. Built for music lovers who demand natural detail, dynamic range, and lifelike imaging, the XDA20 transforms digital files into pure sonic artistry—whether feeding powered monitors or driving high-impedance headphones.

Precision Meets Musicality

From its powerful ESS Sabre DAC architecture to its finely tuned Class A headphone output, the Zenith XDA20 is engineered to reveal every nuance of your recordings. Expect transparency with depth—silky treble, smooth midrange warmth, and articulate, controlled bass. With up to 2.1 Vrms line-level output and ultra-low distortion, this compact performer handles everything from delicate acoustic passages to full orchestral crescendos with breathtaking composure.

What the Experts Are Saying

“ONIX proves that high-end digital audio can be emotional and deeply involving. The XDA20 rivals DACs at twice the price.” — The Absolute Sound, 2025

Built on Proven Audio Engineering

At its heart, the XDA20 employs an ESS ES9038Q2M DAC chip—renowned for its high signal-to-noise ratio and ultra-precise digital conversion. ONIX complements it with a discrete Class A headphone stage, delivering fluid dynamics and exceptional drive for demanding headphones. Gold-plated RCA connectors, a linear power supply, and meticulous internal shielding ensure quiet operation and a pitch-black background.

Seamless Connectivity

The Zenith XDA20 accommodates a wide range of digital sources with USB, optical, and coaxial inputs, plus analog RCA line outputs for connection to powered speakers or a dedicated amplifier. Plug in your computer, streamer, or CD transport, and enjoy native playback of high-resolution PCM up to 32-bit/384kHz and DSD256.

Perfect Fit for Modern Listening

Ideal for desktop or home hi-fi setups, the XDA20 adapts easily to your space and listening habits. Use it as a USB DAC for computer audio, a digital hub for your CD transport, or a dedicated headphone amplifier for late-night listening. Its compact aluminum chassis blends beautifully with any system while providing the performance serious audiophiles expect.

Experience the ONIX Difference

The ONIX Zenith XDA20 isn’t just another DAC—it’s the bridge between your digital library and true high-fidelity sound.

Product Features

High-end ESS ES9038Q2M DAC for stunning clarity and resolution
Class A headphone amplifier delivers exceptional drive and musicality
Native playback up to 32-bit/384kHz PCM and DSD256
USB, coaxial, and optical digital inputs
Gold-plated RCA line-level outputs
Premium aluminum chassis with low-noise power supply
Compact, desktop-friendly design

Product Specs

DAC Chip: ESS ES9038Q2M
Supported Formats: PCM 32-bit/384kHz, DSD256 (Native)
Inputs: 1 USB-B, 1 Optical, 1 Coaxial
Outputs: 1 RCA Stereo, 1 6.3mm Headphone
Output Voltage: 2.1 Vrms
THD+N: <0.0008%
Signal-to-Noise Ratio: 120dB
Dimensions (W x H x D): 6.7" x 1.8" x 7.9"
Weight: 2.9 lbs

Audio Advisor occasionally has fantastic deals on clearance items that are in excellent condition and we happen to have just one or two of.

Demo: Photo samples, gear we auditioned, items returned for wrong color/wrong size, etc.

Open Box: Contents briefly examined or inspected for promotional or internal purposes

Factory Refreshed: Original-condition items repackaged by the manufacturer

Cosmetically Blemished: A few dings or scratches, but functionally in original condition

Used: May show some signs of use

All clearance products are carefully inspected by our technicians before we offer the item for sale. All clearance products except Used items come with the original manufacturer warranty and are guaranteed to work and sound like new.

RETURN POLICY & PROCESS

NOTE:
You may only return a product purchased within 60-days of the receipt date.
The product must be in like-new condition and shipped in the original packaging (So SAVE THOSE BOXES!!!)

Call 1-800-942-0220 to request an RMA number.
Print the RMA number on the return shipping label.
Please make sure the return shipping name and address are written in a note on the inside.
Ship package to…

Audio Advisor Returns
4717 Broadmoor Ave SE, Suite G
Grand Rapids, MI 49512
(PRINT YOUR RMA NUMBER HERE)

NOTE: If a coupon was used in the ordering process, then the final value (recorded during payment) will be the price refunded.

Returned products are inspected by our warehouse and refunds are issued within 24 hours of inspection. Please note: it may take 7-10 business days for your bank to show the refunded amount. If you do not see it then, please reach out to our customer service team at 1-800-942-0220.

Audio Advisor will ship products anywhere in the United States, including Alaska, Hawaii, and U.S. Territories.