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General Information
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Manufacturer
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RDL
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Manufacturer Part Number
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RDL-RUADA4D
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Product Name
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Rack Up
Series Audio Distribution Amplifier, Four Channel Stereo Audio |
| UPC Code |
813721013408
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Overview
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The RU-ADA4D is a four
channel stereo audio distribution amplifier with input and output
gain adjustments and input level metering. The module may be
operated in mono to provide up to eight distributed mono signals.
The inputs and outputs are connected on rear panel detachable
terminal blocks
Each of the two line level inputs accepts either a balanced or an
unbalanced signal. Each input is equipped with a front panel INPUT
GAIN trimmer. Input signal levels between -14 dBV unbalanced and
+9 dBu balanced may be set to the proper operating level as
indicated by a dual-LED VU meter
This assures ample headroom at all normal operating levels. The
maximum input level is + 25 dBu
A rear panel switch selects between stereo and mono operation. In
the mono position, input A (left) is used to drive all 8 output
channels. When the module is used in a monaural system, only input
A must be wired
The RU-ADA4D offers exceptional headroom, very low distortion,
excellent crosstalk isolation, wide flat frequency response and
extremely low noise with very high common mode signal rejection.
It provides exceptional audio performance for the most critical
applications in a professional audio environment
The RU-ADA4D operates from 24 Vdc connected through a rear panel
detachable terminal block
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Features
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- Stereo audio distribution with 4
outputs
- Mono audio distribution with 8
outputs
- Front panel input level trimmers
- Dual LED VU meter for each input
channel
- Front panel output level
trimmers
- Inputs and outputs on rear panel
detachable terminal blocks
- Exceptional audio quality for
the most demanding applications
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Pictures
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Specifications
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| Inputs
(2) |
Stereo
(A/left and B/right) on detachable terminal block
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| Input
Impedance |
20
kOhms balanced or 10 kOhms unbalanced
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| Input
Level |
+4
dBu balanced (nominal), +25 dBu maximum; -10 dBV unbalanced
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Input
Gain Adjustments (2)
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-5 dB
to +15 dB (rel. +4 dBu balanced); -3 dB to +17 dB (rel. -10 dBV
unbalanced)
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| Input
Metering (2) |
Dual-LED
VU Meter for Input A and Input B
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| Mono
mode |
Rear-panel
switch-selectable (input A feeds all 8 outputs)
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Outputs
(8)
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Stereo,
A (4), B (4) on detachable terminal blocks
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Output
Impedance
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150
Ohms balanced; 75 Ohms unbalanced
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Output
Level
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+4
dBu balanced (nominal), +24 dBu maximum; -10 dBV unbalanced
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Output
Level Adjustments (8)
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-9 dB
to +6 dB (rel. +4 dBu, balanced); -3 dB to + 12 dBu (rel. -10 dBV,
unbalanced)
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Frequency
Response
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10 Hz
to 165 kHz (+/- 0.25 dB); 10 Hz to 35 kHz (+/- 0.01 dB)
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| THD+N
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Less
than 0.0025 percent (20 Hz to 20 kHz)
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Headroom
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Greater
than 20 dB (above +4 dBu input or output)
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Noise
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Less
than -92 dB (below +4 dBu output, 20 Hz to 20 kHz)
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Crosstalk
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Less
than -90 dB (20 Hz to 5 kHz); Less than-80 dB (5 kHz to 20 kHz)
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CMRR
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Greater
than 90 dB (100 Hz)
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Power
Requirement
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GROUND REFERENCED, 24 Vdc at 82 mA (idle, nominal), 120
mA (maximum)
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| Ambient Operating Environment |
0C to 50C
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| Dimensions |
5.75" x 1.65" x 3.54", 3.90" Depth with connectors |
| Shipping Dimensions |
6.00" x 6.00" x 2.63" |
| Weight |
1.13 lbs
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| Shipping Weight |
1.38 lbs |
