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To obtain warranty service for your Audibox, call, write, or

Email to ARX or the dealer you purchased it from. They will

give you the correct address to send your unit to. Have your

sales receipt showing date of purchase handy, and include a

copy of it with your Audibox. Please pack the unit well - we

are not responsible for any damage caused by unsuitable

packing during shipment. Send the unit to us pre-paid, by a

delivery service like FedEx, UPS, or any other service that

can track the shipment. We will return it to you freight paid. If

you have any questions, or any part of this is unclear, please

write to ARX Systems in the country of purchase, or to the

address below.
PO Box 15,Moorabbin, Victoria 3189, Australia. Phone: +61

(0)3 9555 7859  Fax: +61 (0)3 9555 6747

You can also Email the factory at:

 [email protected]

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ARX Systems (ARX) warrants to the first purchaser of this Audibox

product that it is free from defects in materials and workmanship

under normal use and service. ARX’s sole obligation under this war-

ranty shall be to provide, without charge, parts and labour neces-

sary to remedy defects, if any, which appear within twelve (12)

months from date of purchase; and to supply parts only for the life

of the product to the original purchaser.

This is our sole warranty. It does not cover finish or appearance

items, nor does it apply if the Audibox has been, in ARX’s sole judge-

ment:

• Subjected to misuse, abuse, negligence or accident;

• Repaired, worked on, or altered by persons not authorized by ARX,

• Connected, installed, adjusted or used otherwise than in accord-

ance with the instructions supplied by ARX.

This warranty gives you and us specific legal rights, and you may also

have other rights which can vary from state to state.

INTERNATIONAL LIFETIME WARRANTY

As well as the 

USB-DI

, ARX manu-

facture other products in the unique

Audibox range:
The 

ISO-Balancer

 for balancing

unbalanced signals, and also the

ISO De-Balancer

, which will de-

balance a signal when required to

connect to an unbalanced input.
The 

ISO-Later

 is a Dual channel

Unbalanced to Balanced Low Im-

pedance transformer isolated con-

verter, and the 

ISO Splitter

 is a

transformer isolated 1 input to 2 out-

puts splitter for splitting 1 input 2 ways

in applications where complete Gal-

vanic isolation is required.
Both available in Single Channel or

Double Header format.
The 

Ear Driver

 is a Headphone Am-

plifier with 2 pairs of Stereo inputs

each feeding two channels of head-

phone level outputs. It has individu-

al Level controls plus a 12 - 15VDC

power connector. A compact, flexi-

ble unit
The 

Pro-D

I is an ultra compact Ac-

tive Direct box, with normal High Im-

pedance input as well as a separate

speaker level input for connection to

instrument amplifiers.
Other features include –20dB Pad

and Audio Ground Lift switches, plus

Phantom or DC power options.

Did you know...

Available in Single Channel or Dou-

ble Header format
The 

DI-Pre

 is an Ultra compact Mi-

crophone Pre amp with XLR input,

balanced jack output and 10 to 60dB

Gain control.
Other features include –20dB Pad

switch, Clip LED and Phantom Power

switch, plus DC power connector.
Available in Single Channel or Dou-

ble Header format
For the latest information on the com-

plete Audibox range, visit our web-

site:
www.arx.com.au/audibox.htm

Using your Audibox

The 

USB-DI

 is a Direct Injection, or Di-

rect, box. It is a self contained, stand
alone stereo unit designed to interface
stereo digital audio with professional bal-
anced low impedance inputs. It will con-
vert computer audio signals into ones that
are happy to travel down a long line into
a mixing console at the other end. It has
many applications for Live Sound, Stu-
dio or Broadcast use.

Plug and Play

If you are running Win XP or Vista, as
soon as you plug the 

USB-DI

 into a spare

USB port on the computer it will be rec-
ognised as a 

USB  Audio Device

, and

will be ready straight away.
With Win 98SE, as soon as you plug the

USB-DI

 into a spare USB port on the

computer it will be recognised as a 

USB

Composite Device

, and the Add New

Hardware Wizard screen will pop up.
Click NEXT on the first 2 screens, put in
the 98SE CD Rom, then select CD Rom
drive on the search screen and click
NEXT. Click Next on the following pop
up screen, then FINISH on the final
screen.
It will then install the USB Device driv-

ers, and repeat the install process

for a USB Audio Device.
www.arx.com.au/audibox_usb_di.htm

Operating instructions

IMPORTANT #1

Input Connections

Connect the USB connector to the

USB-DI and to the USB port on the

computer.  On XP and Vista it will be

available immediately and the LED on

the front of the USB-DI will start to flash.
On 98SE follow the previous instruc-

The Windows default volume setting

for USB Audio Devices is 50% of max-

imum. In many cases this will be too

low, inducing noise and hum as ex-

cessive gain may need to be applied

to deliver the level requireded. We

suggest increasing this volume setting

to 80 or 90%.
No matter which operating system you

are using, once the 

USB-DI

 is in-

stalled, go to Control Panel, then

Sounds and Audio Devices, then USB

Audio Device, then the Volume tab,

and move the slider to the right. This

will give you the optimum signal to noise

ratio.

IMPORTANT #2

Computers are very electrically noisy

environments, and USB is a very pop-

ular Plug and Play protocol for lots of

Windows devices.
For fastest and quietest audio opera-

tion you 

must

 plug the 

USB-DI

 into

its own USB port, 

not a hub

. Experi-

ment on your computer to find the qui-

etest USB port, and keep it only for the

USB-DI

 - don't have anything else on

the same buss.
Otherwise you may get a hissing and

clicking noise every time you move

the mouse, touch the keyboard, or click

on the screen.

IMPORTANT #3

Keep mobile/cellular phones well away

(at least 2 metres/8 feet) from the com-

puter and the USB-DI.
The "Dut dut-dah-dut dut-dah-dut dut-

dah-dut" sound of a mobile phone

connecting is not one that audiences

care to hear!

tions. You 

will

 need the 98 SE install

CD Rom. Adjust the Audio Level as

described in the Important #1 note

on the previous page.

Output Connections

Connect a balanced microphone

lead from each 3 pin XLR connector

on the USB-DI to a pair of input chan-

nels on the mixing console. Set the

Input Gains on the channels, and Pan

the channels Left or Right as required.
To check that the 

USB-DI  

is set up

correctly, open your audio software,

ensure that USB Audio Device is se-

lected as the default audio device,

open a music file and play.
That's all there is to it.
Put simply, the 

USB-DI

 is the USB

pro audio interface that Audio Profes-

sionals have been waiting for!

©2007 ARX Systems Pty.Ltd. ACN 006 471
825. All rights reserved.  ARX Systems®
is a Registered Trade Mark.

www.arx.com.au

Latest information updates are al-
ways available on the comprehen-
sive ARX website:

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