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User Manual for RDL RU-ADA4D - Audio Distribution Amplifier Click to enlarge the picture
Contents of the user manual for the RDL RU-ADA4D - Audio Distribution Amplifier
- Product category: Distribution Amplifiers RDL
- Brand: RDL
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for RDL Distribution Amplifiers
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User manual for the RDL RU-ADA4D - Audio Distribution Amplifier contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any RDL product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official RDL user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a RDL product will considerably shorten its lifespan!
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Product description The RU-ADA4D from RDL 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 trim level. 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 is used to drive all 8 output channels. When the module is used in a monaural system, only input A must be wired.
Audio outputs are isolated from each other and may be wired balanced or unbalanced. Each of the outputs is provided with a front panel screwdriver adjusted Output Level control. Relative to a balanced +4 dBu output level, this gain potentiometer allows an adjustment range from -9 dB to +6 dB. Relative to an unbalanced -10 dBV output, each output potentiometer allows an adjustment from -3 dB to +12 dB.
The RU-ADA4D offers generous headroom, low distortion, crosstalk isolation, wide frequency response and low noise with high common-mode signal rejection. It provides quality performance for professional audio applications. UPC: 813721013408 In the Box RDL RU-ADA4D - Audio Distribution Amplifier Limited 3-Year Warranty Table of Contents
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Technical parametersRDL RU-ADA4D Specs | | | Inputs | Stereo input (input A /input B) on detachable terminal block | | Input Impedance | 20kΩ balanced
10kΩ unbalanced | | Input Gain | -5 dB to +15 dB (rel. +4 dBu balanced)
-3 dB to +17 dB (rel. -10 dBV unbalanced) | | Input Metering | Dual-LED VU meter for Input A and Input B | | | | Mono Output | Rear-panel switchable (input A feeds all 8 outputs) | | Outputs | 4 x stereo (input A /input B) outputs on detachable terminal blocks | | Output Impedance | 150Ω balanced
75Ω unbalanced | | Nominal Output Level | +4 dBu balanced
-10 dBV unbalanced | | Maximum Output Level | +24 dBu maximum | | Output Level Adjustment Range | -9 dB to +6 dB (rel. +4 dBu, balanced)
-3 dB to + 12 dBu (rel. -10 dBV, unbalanced) | | | | Frequency Response | 10 Hz to 165 kHz ±0.25 dB
10 Hz to 35 kHz ±0.01 dB | | THD + N | < 0.0025% (20 Hz to 20 kHz) | | Headroom | > 20 dB (above +4 dBu input or output) | | Noise | < -92 dB (below +4 dBu output, 20 Hz to 20 kHz) | | Crosstalk | < -90 dB (20 Hz to 5 kHz)
< -80 dB (5 kHz to 20 kHz) | | CMRR | > 90 dB (100 Hz) | | | | Power Requirement | 24 VDC @ 82 mA (idle, nominal), 120 mA max
Ground referenced | | Operating Temperature Range | 32 to 122°F (0 to 50°C) | | Dimensions (W x H x D) | 5.74 x 1.64 x 3.54" (14.58 x 4.17 x 9 cm) | | Weight | Not specified by manufacturer | | | | Package Weight | 1.4 lb | | Box Dimensions (LxWxH) | 6.8 x 6.2 x 2.8" |
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