ART DUALRDB om_dualrdb.pdf

Dual Reamping Direct Box

Artcessories

User's Manual

IMPORTANT SAFETY INSTRUCTION – READ FIRST

This symbol, whenever it appears,
alerts you to the presence of
uninsulated dangerous voltage
inside enclosure-voltage that may be
sufficient to constitute risk of shock.

Read Instructions: Retain safety and operating instructions for
future reference. Heed all warnings printed here and on the
equipment. Follow the operating instructions printed in this us er
guide.

Do not open: There are no user serviceable parts inside. Refer
any service work to qualified technical personnel only.

Grounding: Only connect the unit to equi pment with properly
grounded mains power. Do not defeat the grounding and
polarization means of the power cord plug of the connected
equipment. Do not remove or tamper with the ground
connection on the power cord of the connected equipment.

Environment: Protect from excessive dirt, dust, heat, and
vibration when operating and stori ng. Avoid tobacco as h, drink
spillage and smoke, especially that associated with smoke
machines.

Handling: Protect the controls from damage during trans i t. Use
adequate padding if you need to ship the unit. To avoid injury to
yourself or damage to the equipment, take care when lifting,
moving or carrying the unit.

Servicing: Refer servicing to qualified technical personnel.

This symbol, whenever it appears,
alerts you to important operating
and maintenance instructions in
the accompanying literature.
Please read the manual.

Installation: Install the uni t in accordance with the instructions
printed in the user guide.

INTRODUCTION:

Thanks for purchasing Applied Research and
Technology’s Dual RDB. The Dual RDB is the ideal
input solution for any application where stereo or dual
Line level signals from Mixers, Recording interfaces,
iPods, Laptop computers, consumer DVD players,
Consumer HiFi equipment or video machines have to be
connected to XLR microphone or 1/4" instrument level
inputs. The unit has two high quality isolation
transformers that prevent ground loops when connecting
various systems together.
The Dual RDB accepts 1/4-inch TRS and XLR line level
inputs, and outputs mic or instrument levels. Variable
level controls allow the Dual RDB to vary the volume
control at the source. The Dual RDB is ideal for setting
the volume of your component at the source, rather than
in and studio, AV room, audio closet or installation rack.
A 20Hz to 20kHz frequency response ensures the Dual
RDB will function seamlessly with any high quality audio
source.

FEATURES:

• Transformer isolated XLR microphone level outputs

• Transformer isolated 1/4" TRS instrument level

outputs

• 20 to 20,000Hz Frequency Response

• Dual XLR line level inputs

• Dual 1/4-inch TRS line level inputs

• Variable Level Controls that can fully mute.

• CH2 source selectable between CH1 or CH2 Input

• CH2 output phase switch

• Balanced outputs

INSTALLATION and OPERATION:

Connect your line level signal to INPUT 1 - 1/4" TRS
phone jacks or XLR Input connector. Connect either 1/4"
jack or XLR of OUTPUT 1 to an instru ment or mic input .

For dual operation, connect INPUT 2 and OUTPUT 2 in
a similar manner and set the OUTPUT 2 SOURCE
switch to Input 2.If you want to split INPUT 1 into two
outputs, set the OUTPUT 2 SOURCE switch to Input 1.

Use the OUTPUT 2 PHASE switch to correct phase
error problems elsewhere in the audio system.

Set the Output Level knobs for best signal strength and
clarity.

Signal Flow Chart

APPLICATIONS:

• Re-amping interface for multiple amps

• Stereo/Dual direct box

• Variable input pad for mic or instrument inputs

• Stereo Audio/Video interface to low level inputs

SPECIFICATIONS:

Frequency Response: 20 Hz - 20 kHz, ± 0.5 dB @

+4 dBu
THD: .01% @ 1kHz, +18 dBu
<.05% @ 100Hz, +18dBu

Channel Separation: > 80 dB (typical)
Input Connections: 1/4" TRS balanced,

XLR balanced female
Output Connections: 1/4" TRS balanced,
XLR balanced female
Insertion loss: -20dB @100k Ohm load,

-25dB @600 Ohm load
Dimensions HxWxD (in): 1.85 x 4.6 x 3.9
HxWxD(mm): 47 x 117 x 99

Weight (lbs/kg) : 0.88 / 0.40

WARRANTY INFORMATION:

Limited Warranty (USA only)

Applied Research and Technology will provide warranty
and service for this unit in accordance with the following
warrants:
Applied Research and Technology, (ART) warrants to
the original purchaser that this product and the
components thereof will be free from defects in
workmanship and materials for a period of three years
from the date of purchase. Applied Research and
Technology will, without charge, repair or replace, at its
option, defective product or component parts upon
prepaid delivery to the factory service department or
authorized service center, accompanied by proof of
purchase date in the form of a valid sales receipt.

Exclusions

This warranty does not apply in the event of misuse or
abuse of the product or as a result of unauthorized
alterations or repairs. This warranty is void if the serial
number is altered, defaced, or removed.
ART reserves the right to make changes in design or
make additions to or improvements upon this product
without any obligation to install the same on products
previously manufactured.
ART shall not be liable for any consequential damages,
including without limitation damages resulting from loss
of use. Some states do not allow limitations of incidental

or consequential damages, so the above limitation or
exclusion may not apply to you. This warranty gives you
specific rights and you may have other rights, which
vary, from state to state. The warranty terms listed
above are only valid within the United States of America.
For units purchased outside the United States, an
authorized distributor of Applied Research and
Technology will provide service. For information on
warranty and service policies outside of the U.S., please
contact your local distributor.

Please fill in the following information for your reference:

Date of purchase: _________________________
Purchased from: _________________________

SERVICE:

The following information is provided in the unlikely
event that your unit requires service.

1. Be sure that the unit is the cause of the problem.
Check to make sure that the unit has power
supplied, that all cables are connected correctly,
and that the cables themselves are in working
condition. You may want to consult with your dealer
for assistance in troubleshooting or testing your
particular configuration.

2. If you believe that the ART unit is at fault, go to

www.artproaudio.com. Select "Support", then

"Return Authorization Request" to request a return
authorization number.

3. If you are returning the unit for service, pack the
unit in its original carton or a reasonable substitute.
The original packaging may not be suitable as a
shipping carton, so consider putting the packaged
unit in another box for shipping. Print the RA
number clearly on the outside of the shipping box.
Print your return shipping address on the outside of
the box.

4. Include with your unit: a note with the RA number
and your contact information, including a return
shipping address (we cannot ship to a P.O. box)
and a daytime phone number, and a description of
the problem, preferably attached to the top of the
unit. Also include a copy of your purchase receipt.