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Precision Tools for Audio Professionals


Model Options

Hand made in Australia

Dual Channel unit only
(Click on image to enlarge)

Also Available - USB DI - VC
The same great features with the useful addition of an Output Volume Control!



See the USB audio Knowledge Base
- IMPORTANT essential reading

Bus powered - requires no external power


Click Here to check out the reviews on this unique product!

More Audiboxes:

Blue DI

(USB Plus Analog)

(USB Plus Analog)




ISO Balancer
ISO Balancer-VC

ISO Balancer DI

ISO De-Balancer
ISO Later
ISO Splitter
ISO Combiner
ISO Switcher
ISO Selector

Remote Switcher

Q Switch

Pro DI
Ear Driver

DI-Plus RC
DI-Plus2 RC


In keeping with our policy of creating essential audio interfaces, ARX is excited to present the new ARX USB DI - a true Plug and Play 24 bit High Resolution digital to analog pro audio interface. It removes the need to use any existing sound card outputs, with their inherent noisy environment and problematic grounding.

It features full transformer balanced output isolation to eliminate earth loops / ground hum and other extraneous interaction noise and distortion.

Plug and Play

The USB DI installs as a fully compatible generic USB audio device, requiring no special driver program installation on Mac OSX, Win XP, Windows 7 and 8

The front panel has a Type B USB input connector and two transformer balanced analog audio XLR Line out connectors for connecting to any standard balanced analog input.

A status LED on the front panel indicates that the USB DI is connected and operating.

The USB DI is housed in a heavy duty all-steel chassis finished in attractive matt textured polyurethane, with hardwearing epoxy screen printing and slip resistant rubber pads. It is ideal for interfacing any USB equipped computer (especially notebook computers) with the balanced inputs of professional sound systems.
Security features include Kensington®-type computer lock slot and optional bracket kit for under-table mounting.

The USB DI is available in Dual Channel format, includes a premium quality USB-A to USB-B cable, and is hand made in Australia

T E C H N I C A L || S P E C I F I C A T I O N S


USB Di Schematic Diagram

USB-DI Specifications

Input Connector USB type B port

Codec 24 bit High Resolution

Output Impedance 300 Ohms Transformer Balanced

Output Level Maximum nominal output level 0dB

Output Noise
USB - System dependent
ISO transformer - Enviroment sensitive

Frequency Response 20 - 20 KHz ± 0.5 dB

Power Operating current via USB Port 80mA

Output Connectors
2 x Male XLR, wired Pin 2 + Hot, Pin 3 – Cold. Pin 1 Floating / not connected

All-steel powdercoated chassis, fibreglass PCB, epoxy printing,
slip-resistant rubber feet

System Requirements

  • Windows PC running Windows XP, Windows 7/8/10, Mac running OS X or later
  • USB port

98SE will need the Win 98SE CD Rom to install driver. However, in reality if you're serious about music you'll already be using a later operating system

Precision engineered
Most of the Audibox range share a common footprint and manufacturing platform. Offset lid screws enable close side-by-side mounting of multiple units.

Click on image at Right to see larger version

Click Here for the ARX USB Knowledge Base

Click Here for Audibox USB DI info for Win XP

Click Here for Audibox USB DI info for Win 7

Click Here for Audibox USB DI info for Win 8

Win 98SE Install information

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Click on the
Brochure PDF link below for a more detailed product overview

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