ARX DI-PLUS2-RC Owner's Manual

Specifications
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
Page 4

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.
Page 6
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.
Did you know...
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!
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
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
Page 5
INTERNATIONAL LIFETIME WARRANTY
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.
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: info@arx.com.au
Page 7
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.