RU-DA4D RADIO DESIGN LABS, RU-DA4D Datasheet
RU-DA4D
Manufacturer Part Number
RU-DA4D
Description
RDL AUDIO DISTRIBUTION AMPLIFIER, GAIN: -15- DB, FEATURES: INPUT AND OUTPUT CONNECTIONS ARE MADE VIA A FULL SIZE SCREW TERMINAL STRIP, ON THE REAR PANEL AND ACCEPT ANY COMBINATION OF BALANCED OR UNBALANCED WIRING CONFIGURATIONS
Manufacturer
RADIO DESIGN LABS
Datasheet
1.RU-DA4D.pdf
(2 pages)
RACK-UP
Model RU-DA4D
Audio Distribution Amplifier
ANYWHERE YOU NEED...
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You Need The RU-DA4D!
The RU-DA4D is part of the group of RACK-UP products from Radio Design Labs. RACK-UPs feature the
advanced circuitry for which RDL products are known, combined with accessible user-friendly controls and
displays. The ultra compact design permits high-density installations, with three products mounted in a
single rack unit! Single RACK-UPs can be mounted right where they are needed using the adhesive
method popularized by RDL’s STICK-ON
RACK-UP module above, below, or in front of any flat surface!
APPLICATION: The RU-DA4D is the ideal choice in most applications where line-level signals need to be
distributed. All connections are made using full-size barrier block terminals on the rear panel.
The RU-DA4D has two separate line-level inputs. Each input permits the connection of either balanced or
unbalanced, high or low impedance audio lines.
When a stereo source is used, one channel is connected to each of the two inputs. In this configuration,
the RU-DA4D provides four isolated outputs from each of the two (left and right) inputs. When a monaural
source is used, a total of eight outputs can be fed simultaneously. There is a rear-panel jumper provided
which feeds the audio source connected to input A to all of the B outputs, as well as to the normal A
outputs.
Each of the outputs is provided with a front-panel screwdriver gain control. Relative to the input level, this
gain potentiometer allows an adjustment ranging from 15 dB loss to 18 dB gain. Each of the outputs drive
balanced-audio lines, and may be unbalanced if required. A convenient (write-on) label area is provided to
identify the feed controlled by each output level control.
Audio presence is indicated by an LED indicator. An indicator is provided for each channel. Whenever an
audio signal is present for the given channel input, the indicator lights.
Wherever an audio distribution amplifier is needed to provide superior audio clarity, user adjustments,
reliability, compactness and unsurpassed versatility; the RU-DA4D is the ideal choice. Use the RU-RA3
rack-mount adapter to mount multiple RU-DA4Ds, or to combine related products (such as audio mixing,
video distribution, or audio metering) into a single rack unit!
Stereo Audio Distribution with 4 Outputs
Mono Audio Distribution with 8 Outputs
Multiple Isolated Audio Feeds
Individual Audio Level Controls
Audio Presence Indicators
1/3-Rack, High-Density Rack-Mounting
RDL
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659 N. 6
®
SERIES
th
St.
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Prescott, AZ., USA 86301
®
series of products. Optional brackets permit mounting a
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(928) 443-9391
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FAX (928) 443-9392
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www.rdlnet.com
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RU-DA4D Summary of contents
Page 1
... When a stereo source is used, one channel is connected to each of the two inputs. In this configuration, the RU-DA4D provides four isolated outputs from each of the two (left and right) inputs. When a monaural source is used, a total of eight outputs can be fed simultaneously. There is a rear-panel jumper provided which feeds the audio source connected to input A to all of the B outputs, as well as to the normal A outputs ...
Page 2
... For balanced wiring, connect the conductors to the + and - terminals. The ground is typically connected to the equipment that the RU-DA4D is feeding desired to connect the ground, use the nearest GND terminal. For unbalanced wiring, connect the positive lead to the output + terminal; connect the shield to the nearest GND terminal ...