Arx Pro di User manual

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 in-

clude a copy of it with your Audibox. Please pack the unit

well - we are not responsible for any damage caused by

unsuitablepackingduringshipment.Sendtheunittouspre-

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 pur-

chase, or to the address below.

POBox15,Moorabbin,Victoria3189,Australia. Phone:+61

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

You can Email the factory at: [email protected]

Page 7Page 6

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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,nordoesitapply if the Audibox has been,inARX’ssolejudge-

ment:

• Subjected to misuse, abuse, negligence or accident;

•Repaired,workedon,oralteredbypersonsnotauthorizedbyARX,

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

ance with the instructions supplied by ARX.

Thiswarranty gives youand us specificlegal rights, andyou may also

have other rights which can vary from state to state.

INTERNATIONAL LIFETIME WARRANTY

As well as the Pro-DI, ARX manu-

factureotherproductsintheunique

Audibox range:

The ISO-Balancer for balancing

unbalancedsignals,andalsothe ISO

De-Balancer, which will de-bal-

anceasignal when requiredtocon-

nect 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

outputs splitter for splitting 1 input

2 ways in applications where com-

pleteGalvanic isolationis required.

Both available in Single Channel or

Double Header format.

The Ear Driver is a Headphone

Amplifier with 2 pairs of Stereo in-

Did you know...

puts each feeding two channels of

headphone level outputs. It has indi-

vidual Level controls plus a 12 -

15VDC power connector. A com-

pact, flexible unit

The AV-DI is a Stereo AudioVisual

Active Direct box, with dual RCA or

stereo mini jack input and dual XLR

outputs.Ideal forinterfacingconsum-

er audio (especially computer sound

cards) with professional systems.

Other AV-DI features include full-

time soft audio ground, –20dB Pad,

plusPhantom or DCpower options.

AvailableinDualChannelformatonly

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,ClipLEDandPhantomPower

switch, plus DC power connector.

Available in Single Channel or Dou-

ble Header format

For the latest information on the

complete Audibox range, visit our

website:

www.arx.com.au/audibox.htm

Using your Audibox

The Pro-DI is a Direct Injection, or

Direct, box. It is a self contained,

stand alone single or dual channel

unit designed to interface unbal-

anced high impedance lines with

Pro DI Specifications

Max Input Level +12 dB Phantom powered, +8 dB using

12 VDC Power Supply.

Input Impedance 1 Meg Ohm

Max Output Level (nominal)

+12 dB 10K Ohm load using Phantom power

+11 dB 600 Ohm load using 12 VDC Power

Supply

Output Impedance 680 Ohms Balanced

Output Signal to Noise-100 dB unweighted, -104 dB A weighted

Dynamic Range 112 dB 10K Ohm load using 12 VDC Power

Supply

Distortion 100 Hz 0.0025%, 1KHz 0.0026%,

10KHz 0.0033%

Frequency Response 20Hz to 20KHz, ± 0.2 dB

Gain through Unit 6dB (Normal input, Pad switch out)

Pad Switch -20 dB attenuation

Speaker Input -40 dB attenuation, equivalent to 100:1

decrease in input level.

-60 dB attenuation available with Pad switch

Input Connectors Insulated jacks

Output Connector 3 pin male XLR. Wired Pin 1 Ground, Pin 2 +

Hot, Pin 3 – Cold. Audio Ground (Pin 1) lift

switch fitted

Construction All-steel powdercoated chassis, fibreglass PCB

The Pro DI Duo Dual channel model has identical specifications for each

channel

other end. It has many applications

for Live Sound, Studio or Broadcast

use.

Typical input types are:

• Musical instruments - Bass guitar,

electric guitar, synthesizers, elec-

tronic drums, drum machines

• Consumer audio products - MP3

players, laptop computer sound

cards,CD players, audiofromDVD

players, cassette decks, tape decks,

VCR audio and more

Operating instructions

Normal Connection

Plug a jack lead with a high imped-

ancesource(instrument,unbalanced

lines or similar) into the Normal In-

put. This will turn the unit on and a

balanced signal will appear at the

XLR Balanced Output on the rear

of the unit. This connects to the In-

put of the mixing console. If the sig-

nalneedsmonitoring,eg.anonstage

amplifier, then connect a lead from

theLoopOut to theamplifier.Push-

ingthePadswitchINwillreducethe

input level by -20dB if required.

Special Note. The Pro-DI is a Line

level device, so it is not designed to

accept Microphone level signals.

Connection from an Amplifier

Forapplicationswherethe sound of

the instrument/amplifier combina-

tionisrequired, connectaleadfrom

theAux (or External) speaker out-

put on the rear of the amplifier to

professionalbalanced lowimpedance

inputs.Inother words, itwillconvert

audio signals from instruments and

consumer electronics into ones that

are happy to travel down a long line

and meet a mixing console at the

the Speaker Level Input (-40dB) on

thePro-DI.Ifthesignal isstilltoohot,

thenswitchthePADswitch in as well

to reduce the input by a further -

20dB.

Note:BesuretoalwaysusetheAux

or External speaker output on the

amplifier. Never disconnect the

speakers on a valve/tube amplifier.

Output Connections

Connectabalancedmicrophone lead

fromthe 3 pinXLR connector onthe

Pro-DI to an input channel on the

mixing console. Pushing the Audio

Ground Lift switch IN will isolate the

Pin 1 output of the Pro-DI to stop

Ground Loops if required.

Thefull-timeSoftGroundconnection

Grounds both Pin 1 outputs of the

Pro-DIthrougha resistivenetworkto

prevent Ground Loops.

Power Requirements

The Pro-DI is an active device, ie. it

needs power to run. This power can

be supplied 2 ways:

•Phantom power: The Pro-DI will

also run on Phantom power if avail-

ableonthe console. SwitchthePhan-

tompowerON on thechannel(s)the

Pro-DI is plugged into, and the Phan-

tom power LED will light up on the

Pro-DI to show that it is running on

Phantompower.

• External 12 - 15 V DC power:

The Pro-DI has a DC input connec-

tor for running the unit on an exter-

nal12-15 V DC powersupply.Any

12V DC wall connector capable of

supplying200mAmps will work,al-

though for greatest headroom we

recommend the Audibox PSU

whichcansupply15 V DC tomulti-

ple Audibox devices.

Note the wiring of the connector:

theoutersleeve is –, theinneris+.

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Owner's Manual

Page 2

ARX Systems Pty Ltd, PO Box 15,

Moorabbin, Victoria 3189, Australia

Phone: (03) 9555 7859 Fax: (03) 9555 6747

International Fax: +61-3 -9555 6747

On the Net: www.arx.com.au

Email: [email protected]

Thankyou for choosing thisAudibox

product from ARX. We hope you

enjoy using this unique product as

much as we enjoyed creating it.

Aswithall ARXequipment,ithasun-

dergoneextensive factorytestingand

‘burn in’ before shipping.

Toensurecontinuedtroublefreeuse,

please familiarise yourself with the

contentsof this manualbefore using.

All models in the Audibox range

feature the same heavy duty all-steel

chassisfinished inattractivemattblue

textured powdercoat, with

hardwearing epoxy screen printing

and large slip resistant rubber foot

pads.

By their very nature these units are

compact and portable; to protect

yourinvestmentwe’veaddednumer-

ous security features including a slot

for computer lock, and the option of

a permanent table mounting kit.

A rack mount kit is also available to

rack up to 3 units plus power supply

in 1 RU

The Pro-DI

Ultra compact Active Direct box,

with normal High Impedance input

as well as a separate speaker level

input for connection to instrument

amplifiers.

Other features include –20dB Pad

andAudioGroundLiftswitches,plus

Phantom or DC power options.

Available either in Single Channel or

'Double Header' Dual Channel for-

mat

Connections and Controls:

Normal and Speaker Level jack in-

puts and jack Loop Out; Balanced

XLR Output. –20 dB Pad switch,

Audio Ground Lift switch, Phantom

PowerLEDilluminateswhentheunit

is running from Pantom Power. 12 -

15 V DC power connector for run-

ning from external power supply

Normal instrument

connections

Amplifier

connections

Output con-

nections

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