Arx Di-plus2-rc User manual

Using the DI-PLUS2-RC

The DI-PLUS2-RC is a Direct Injec-

tion, or Direct, box. It is a self con-

tained, stand alone stereo unit de-

signed to interface a left and right

pair of unbalanced high impedance

lines with professional balanced low

impedance inputs. In other words,

it will convert ordinary signals into

ones that are happy to travel down

a long line and meet a mixing con-

sole at the other end. It has many

applications for Live Sound, Studio

or Broadcast use.

Typical uses are:

• Musical instruments - Keyboards,

synthesizers, electronic drums,

drum machines

• Consumer audio products - CD

players, cassette decks, tape decks,

video cassette audio, computers.

Operating instructions

To obtain warranty service for your DI-PLUS2-RC, call or

write 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 DI-PLUS2-RC. Pack the unit well

- we are not responsible for 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 DI-PLUS2-

RC that it is free from defects in materials and workmanship under

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

shall be to provide, without charge, parts and labour necessary 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 DI-PLUS2-RC has been, in ARX’s sole

judgement:

• 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

Max Input Level

+12 dB Phantom powered

+6 dB Battery powered

Input Impedance

1 Meg Ohm

Max Output Level

+12 dB 10K Ohm load Battery or Phantom powered

Output Impedance

680 Ohms Balanced

Output Signal to Noise

–100 dB unweighted

–104 dB A weighted

Dynamic Range

112 dB 10K Ohm load

Distortion

100 Hz .0018%

1KHz .0028%

10KHz .0056%

Frequency Response

20Hz to 20KHz, ± 0.2 dB

Gain through Unit

6dB (Pad switch out)

Pad Switch

Global –20 dB attenuation

Input and Loop Out Connectors

Insulated jack

Output Connectors

3 pin XLR. Wired Pin 1 Ground, Pin 2 +Hot, Pin 3 –

Cold. Global Audio Ground (Pin 1) or soft Ground

switch

Construction

All-steel chassis, fibreglass PCB

Battery Rechargeable 9V DC NiMH

channel to the amplifier. Pushing the

Pad switch IN will reduce both input

levels by -20dB if required.

Note: If you are only using One

channel of the DI-PLUS 2-RC, make

sure that you use Channel A. The

Channel A Input jack switches the

DI-PLUS2-RC on.

Special Note. The DI-PLUS2-RC is a

Line level device, so it is not designed

to accept Microphone level signals.

Output Connections

Connect a balanced microphone

lead from each 3 pin XLR connector

on the rear of the DI-PLUS2-RC to a

pair of input channels on the mixing

console. Pan the channels Left or

Right as required.

Pushing the Audio Ground Lift

switch IN will isolate both Pin 1

outputs of the DI-PLUS 2-RC to stop

Ground Loops if required.

Specifications

Did you know...

Input Connections

A stereo high impedance source

(instrument, unbalanced lines or

similar) plugs into Inputs A and B

(typically Left to A and Right to B).

If the signal needs monitoring, eg.

an onstage amplifier, then connect

a lead from the Loop Outs of each

Power Requirements

The DI-PLUS2-RC is an active de-

vice, ie. it needs power to run. This

power can be supplied 2 ways:

• Battery power

In a world first for this type of de-

vice, the DI-PLUS2-RC is fitted in-

ternally with a State-of-the-Art

Nickel Metal Hydride (NiMH) re-

chargeable battery. NiMH batteries

do not suffer from the memory-ef-

fect that plagued earlier Nickel Cad-

mium (NiCad) batteries, and gradu-

ally reduced the amount of power

available after each recharge. If you

ever owned an earlier analog mo-

bile/cell phone you'd be aware of

this unfortunate phenomenon.

These new NiMH batteries also fea-

ture extended battery life, to last

through the longest show.

•Phantom power

The DI-PLUS2-RC will also run on

Phantom power if available on the

mixing console. Switch the Phantom

power ON on the channel the DI-

PLUS2-RC is plugged into, and the

Red Phantom power LED will light

up on the DI-PLUS2-RC. This means

the DI-PLUS2-RC is now running on

the Phantom power and the batter-

ies are recharging. If you switch the

Phantom power off the DI-PLUS2-

RC will revert to battery operation.

PLEASE NOTE:

To charge from Phantom Power the

DI-PLUS2-RC needs to be switched

on, i.e. a jack must be inserted into

one of the INPUTS.

This is not required if the unit is be-

ing charged from an external power

supply via the DC jack input.

As well as the DI-PLUS-RC and the

DI DI-PLUS2-RC, ARX manufacture

a six channel rack mount AC pow-

ered Direct box:

The DI-6SM is a 19” 1 RU AC pow-

ered unit that has 6 independent Di-

rect boxes, each with high imped-

ance Input and Loop out jack con-

nectors, a oo to +15dB level con-

trol, clip LED, balanced XLR output

and individual audio ground lift

switches. It can also function as a 6

into 1 mic or line mixer at the same

time.

Switches on the rear change it from

a 6 into 1 mixer to a 1 into 6 mic or

line distribution splitter, each split’s

level controlled by the six individual

channel controls.

A true Pro Audio toolbox!

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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]

DI-PLUS 2-RC

Dual Channel

RECHARGEABLE

Active Direct Box

Thank you for choosing this ARX DI-

PLUS 2-RC, a major step forward in

active direct boxes. We hope you en-

joy using this unique product as much

as we enjoyed creating it. As with all

ARX equipment, it has undergone ex-

tensive factory testing and ‘burn in’

before shipping. To ensure continued

trouble free use, please familiarise

yourself with the contents of this

manual before using.

Packaged in a dual channel stand-

alone format, the DI-PLUS 2-RC rep-

resents a fresh look at active D.I. re-

quirements.

• Precision engineered

Ultra quiet, ultra clean circuitry de-

livers maximum headroom whatever

the signal. Premium grade compo-

nents, plus an all-steel chassis gives

excellent hum and noise specifica-

tions and superb audio quality in a

tough, roadworthy package.

• Level control

The DI-PLUS 2-RC features dual high

impedance unbalanced inputs on the

front panel, running to balanced XLR

outputs on the rear. A a global Pad

switch drops the input by a further

20dB, making it suitable for all appli-

cations, from the softest keyboard to

the hottest broadcast levels; and all

in glorious stereo! Plus, the Left and

Right channel Gains match up per-

fectly for accurate stereo imaging.

• Rechargeable NiMH Battery

In a first for this type of product, the

new DI-PLUS 2-RC is fitted with a

state-of-the-art Nickel Metal Hy-

dride (NiMH) memory-effect-free

rechargeable battery, which re-

charges whenever Phantom Power

is detected. If no Phantom is present,

it can be recharged via a standard

12V DC external power supply. Pro-

duction crew heaven!

• Automatic Phantom switching

The DI-PLUS 2-RC will automatically

switch itself to the console’s own

Phantom Power, if available, and an

LED will indicate this mode. Turn the

Phantom Power off and it will in-

stantly revert back to battery mode.

• Rugged all-steel case

A lot of direct boxes are fitted into

brittle cast alloy or plastic cases. Not

this one! The tough all-steel inner and

outer chassis of the DI-PLUS 2-RC

provide excellent RF/EMF shielding

while making it a sturdy, heavy duty

unit that is hard to dislodge, and hard

to leave behind.

Whether you’re a Studio or Live

Sound engineer, installation contrac-

tor, or broadcast engineer, you want

all the dynamics and clarity of the

original sound source transferred to

the mixing console.

The ARX DI-PLUS 2-RC provides a

rugged, no-compromise solution to

all direct injection and signal balanc-

ing requirements.

• High Impedance Input Jacks

• Pad switch

• Loop out Jacks

• Balanced XLR output

connectors. Pin 3 – Cold, Pin

2 + Hot, Pin 1 Audio

Ground.

• Audio Ground lift switch. Will

isolate Pin 1 when switched

• Battery check switch and

green battery status LED.

LED will light up when

switch is pressed if battery is

good

• Red Phantom power LED.

Will illuminate if DI-PLUS 2-R

detects Phantom power and

is charging the battery.

Front Panel Connections

Rear Panel Connections

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