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Acoustic Research AR-UA1 High fidelity HD USB DAC with headphone amplifier (Showroom Unit) (Ships Next Day)

Acoustic Research

  • R 4,990.00
  • Save R 5,000


AR-UA1 enhances the user's ability of AR's exact reproduction of sound to one's computer with Hi-Resolution support of the D/A converter to accurately recreate the unprocessed recorded files in a concert hall or studio sound. From bass to treble replicate flat sound without feeling the lack of volume.

Corresponding OS / USB operating system, compatible with Windows 7 / Windows 8 (32 bit or 64 bit) or later / Mac OS 10.6 or later using USB 2.0 connection. Equipped with "Jriver Media Center" a Hi-Res corresponding reproduction software application.


  • DAC: Burr-Brown PCM1794A

  • HEADPHONE AMPLIFIER: Texas Instruments TPA6120A2
  • SYSTEM REQUIREMENTS: Windows 7/ Windows 8/ Windows 10 / MAC OS X 10.6.8 or later
  • BODY SIZE: 3.35in x 5.39in x .98


Key Components

XMOS Audio Processor

USB Audio Controller Equipped with XMOS USB Audio Class 2.0 audio controller.

Clock: Temperature Compensated Dual Crystal Oscillator (TCXO)

High-performance 44.1kHz system (44.1 / 88.2 / 176.4kHz) dedicated, 48kHz system (48/96 / 192kHz) allows you to switch to full clock synchronization

Headphone Amplifier

Equipped with a Texas Instrument TPA6120A2, a powerful current feedback headphone. Additionally, the condenser section is provided with the AVX Corporation audio capacitors.

Digital to Analogue Converter (DAC)

Equipped with a Burr-Brown PCM1794A with the excellent performance of the flagship class. S / N: 129dB and the series best high-speed performance.

Dual Operational Amplifiers

Burr-Brown OPA2134, functions as a preamplifier and a low-pass filter.

Additionally, AR-UA1 is for connection to a PC, as for asynchronous communication USB Audio 2.0 controller and the master clock, equipped with XMOS XS1- L1.

Frequency Response    20Hz - 20kHz (Sampling Rate: 44.1kHz-48kHz) / 20Hz - 40kHz (Sampling Rate: 88.2kHz-96kHz) / 20Hz - 50kHz (Sampling Rate: 176.4kHz or above)
Included    USB Cable / Quick Start Guide / Installation CD with Software Activation Keys
Dimensions    Width: 3.35in × height: 5.39in × Depth: .98in
Weight (Kg/lb)    Less than 1 pound (12 ounces)
Outputs    Headphone output (6.3mm stereo TRS) × 1, Line output (Gold plated solid brass RCA connectors L/R), Optical output (Up to 24-bit/96kHz) × 1
THD    Less than 0.001%
Operating System    Windows 7/8/8.1/10, Mac OS X 10.6.8 or above
Battery Type    3.7V 4200mAh, Lithium Polymer
Display    5" Touch Screen, 720 x 1280 HD Image Quality
Memory    64GB
Maximum Memory Expansion    Micro SDXC Slot (Up to 128GB)
USB Reader    USB 2.0 (B-Type, 5V 500mA host power required)
Music Playback Application    Jriver Media Center (PC and Mac versions included)
Audio Transceiver    Cirrus CS8422
Headphone Amplifier    Texas Instruments TPA6120A2 × 1
Audio Capacitors    Avx Corporation Audio Capacitors
Volume Control    High quality audio potentiometer by ALPS
USB-OTG Storage Support    File system: FAT32 or exFAT / Power: 5V 100mA or lower
Headphone Output Power    32omhs: 400+400mW / 300omhs: 43+43mW
Wireless Network    802.11 b/g/n Wireless LAN 3.7V
  • Audiophile oriented asynchronous USB Audio 2.0 interface

  • M-Class audio engine with Burr-brown PCM1794A DAC based on Acoustic Research M1 music player
  • Top-tier gold plated RCA output connectors for best output performance
  • Built-in headphone amplifier unleashes full potential of high end headphones
  • Windows/Mac OS X music player included for FLAC, DSD 64/128, and DXD playback


The Acoustic Research UA1 USB DAC is a simple upgrade that brings high fidelity high definition audio to a Windows or Mac OS X computer. 

Through the flagship grade Burr-brown PCM1794A DAC and top tier gold plated brass output connectors, your computer immediately turn into a reference class audio source.

With the high performance built-in headphone amplifier, it is capable to unleash the full potential of your high end headphones without the need for an external headphone amplifier.

Audiophile music player software for Windows / Mac OS X has been included for playing audiophile formats including, but not limited to FLAC, DSD 64/128, and DXD.

This is the all-in-one product you need to enable full audiophile music experience on your computer.

The 24/192 UA1 is an outstanding new DAC, designed to upgrade the sound from any computer to deliver genuine High-Definition audio quality and play virtually any HD audio file, it even comes with a free copy of the expensive JRiver Media Centre software for Mac and Windows.

As a portable DAC, the UA1 is USB host-powered so needs no mains supply.

The specifically engineered headphone amp is one of the most powerful available on any device like this and is able to drive serious headphones to their full capability.

The wide range of file formats playable includes - WAV, AIFF, ALAC, FLAC, DSD64/DSD128 and DXD (Player software included)

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