Arx Di pre 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 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.

POBox15,Moorabbin,Victoria3189,Australia.Phone:+61(0)395557859

Fax: +61 (0)3 9555 6747

You can 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. ARX shall not be responsi-

ble for parts that have been discontinued by the original manufac-

turer

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

items,nordoesitapplyiftheAudiboxhasbeen,inARX’ssole judge-

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 givesyou andus specificlegal rights,and youmay also

have other rights which can vary from state to state.

INTERNATIONAL LIFETIME WARRANTY

As well as the DI Pre, ARX manu-

factureotherproductsintheunique

Audibox range:

The ISO-Balancer for balancing

unbalancedsignals,andalsotheISO

De-Balancer, which will de-bal-

anceasignalwhenrequiredtocon-

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 isolation is required.

Both available in Single Channel or

Double Header format.

The Ear Driver is a Headphone

Amplifier with 2 pairs of Stereo in-

puts each feeding two channels of

headphone level outputs. It has in-

dividual 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 for interfacing

consumeraudio(especiallycompu-

Did you know... ter sound cards) with professional

systems.

Other AV-DI features include full-

time soft audio ground, –20dB Pad,

plusPhantom orDC poweroptions.

AvailableinDualChannelformatonly

The Pro DI is an ultra compact Ac-

tiveDirect box,withnormalHighIm-

pedance input as well as a separate

speakerlevelinput for connectionto

instrument amplifiers.

Other features include –20dB Pad

andAudioGroundLiftswitches,plus

Phantom or DC power options.

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

TheDI Preisa Single orDual Chan-

nel Microphone Pre amplifier. It is a

self contained, stand alone single or

dual channel unit designed to bring

the ultra low signallevel of a micro-

phone up to Line level. It has many

DI Pre Specifications

Mic Input Impedance 2 K Ohms Balanced

Phantom Power Voltage Switchable on XLR Pins 2 and 3

Input Gain +10 dB Minimum, variable to +60 dB Maximum

Pad Switch -20 dB attenuation

Overload Measured at all Gain points throughout the circuitry

Output Noise(Measured with Gain nominal 20 dB)

-90 dB Unweighted, -97 dB 'A' weighted

Frequency Response 20 - 20 KHz ± 0.25 dB

Distortion (Measured with Mic Gain @ 20 dB)

100 Hz 0.0085%, 1 KHz 0.008%, 10 KHz 0.0083%

Input Connector Balanced 3 pin female XLR type. Wired Pin 1

Audio Ground, Pin 2 + Hot, Pin 3 – Cold

Output Connector Insulated Tip Ring Sleeve balanced jack

Construction All-steel powdercoated chassis, fibreglass PCB

The DI Pre Duo (Dual channel model) has identical specifications for

each channel

are bringing the signal into. If you

haveacondenser micneedingPhan-

tom power, press the phantom

switchIN.Ifit is a dynamicMic,then

don’t.Ifyouareunsureofwhattype

youhave,here’stherule:Ifit works

OK without Phantom power, then

it’s a dynamic microphone

Set the DI Pre Input Gain at 20 - 30

dB as a starting point, then try the

traditionalsoundengineer’s “Check

1 - 2” into the microphone, and

watch the Clip LED on the front of

the DI Pre. If it lights up, reduce the

Input Gain. If the levels are still too

high,thenpushthe20dBPadswitch

In on the front panel. You may have

to bring the Gain back up a little to

compensate for this. It’s a matter of

trial and error initially, until you are

usedtotheinteractionbetweenthe

DI Pre, microphone, and the Line

input the DI Pre is plugged into.

Different microphones will require

different Input Gain settings, as will

singers with louder and softer

voices,andlouderandsofterinstru-

ments. It’s a good idea to create a

list of different settings that you can

refer back to when you need to.

applicationsforLiveSound, Studio or

Broadcast use.

Operating instructions

Connect the microphone to the bal-

anced XLR Input of the DI Pre, and

connectacablefrom the Outputjack

totheLineInputjackofwhateveryou

Power Requirements

The DI Pre is an active device, ie. it

needs power to run. This power can

be supplied an External 12 - 15 V DC

power:

TheDIPrehasa DC inputconnector

forrunning the unitonan external12

-15VDC power supply.Any12V DC

wall connector capable of supplying

200 mAmps will work, although for

greatest headroom we recommend

theAudiboxPSU whichcansupply15

V DC to multiple Audibox devices.

Notethewiringof the connector:the

outer sleeve is –, the inner is +.

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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 choosingthis Audibox

product from ARX. We hope you

enjoy using this unique product as

much as we enjoyed creating it.

AswithallARXequipment,it has un-

dergoneextensivefactorytestingand

‘burn in’ before shipping.

Toensurecontinuedtroublefree use,

please familiarise yourself with the

contentsof thismanual beforeusing.

All models in the Audibox range

feature the same heavy duty all-steel

chassisfinishedinattractivemattblue

textured powdercoat, with hard-

wearing 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

UltracompactMicrophonePreamp

with XLR input, balanced jack out-

put and 10 to 60dB Gain control.

Other features include –20dB Pad

switch,ClipLEDandPhantomPow-

er switch, plus DC power connec-

tor.

Available in Single Channel or Dou-

ble Header format

Connections and Controls:

Balanced XLR Microphone Input. –20 dB Pad switch and

indicator LED, Phantom Power Switch and indicator LED

illuminates when the unit is providing Phantom Power. The

Clip LED will light up when the the signal level is too high.

Thereis also aGain controlfrom 10 to60dB, a balancedTip

RingSleeve Outputjack, and a 12 - 15 V DC power connec-

tor for connecting to an external power supply

This manual suits for next models

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