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  • Wohler AMP1-D8-MDA

Wohler AMP1-D8-MDA

  • Brand: Wohler
  • Product Code: AMP1-D8-MDA
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Wohler Part Number: 8102-0075
Rack Height: 1RU
Weight: 18.0 lbs (8.2 kg)
Dimensions: 1.75x19x13.5" (45x483x343mm)
Power Consumption: 72W Max
Signals Monitored: Analog;AES/EBU;HD/SD-SDI;Dolby;SD-SDI
Analog Inputs: 8 Balanced Analog Inputs on DB-25
Analog Outputs: 2 Balanced Analog Outputs Summed from Selected Source on XLR; 8 Balanced Analog Outputs from Selected Source on DB-25
AES/EBU Inputs: 4 Unbalanced AES Input Pairs on BNC; 4 Balanced AES Input Pairs on DB-25
AES/EBU Input Termination: 110 ohms balanced; 75 Ohms unbalanced
AES/EBU Input Sampling Rate: 32-48 kHz, auto-detecting
AES/EBU Outputs: 4 Balanced AES Loop-through Output Pairs on DB-25; 4 Balanced AES Outputs from SDI on DB-25
SDI Inputs: 2 3G/HD/SD-SDI Inputs on BNC
SDI Input Termination: 75 Ohms unbalanced
SDI Outputs: 1 3G/HD/SD-SDI Reclocked Output on BNC
Dolby Inputs: 2 Dolby AC-3 Inputs on BNC
Dobly Outputs: 4 Dolby AC-3 Decoded Outputs on BNC; 1 Unbalanced AES Mix Output from Dolby AC-3 on BNC
Level Meters: 8 x 26 Segments (Vertical)
Level Meter Scale: 0 to -60 dB
Level Meter Threshold: 0, +4, +6, +8 dBv: switch selectable
Level Meter Dynamics: Simultaneous VU & PPM
Level Meter Resolution: 1 dB
# of Video Displays: 0
Display Characteristics: LCD
Display Modes: Data Only
Aural Sound Outputs: Wohler Speaker System;Headphone, Mutes Speakers
Acoustic Distortion: 8% or less worst case frequencies above 180 Hz including cabinet resonance, typically < 2%
Electrical Distortion: <0.15% at any level below limit threshold
Frequency Response (1/6 octave): 80 Hz - 20 kHz (+ or -5 dB); (-10 dB @ 50 Hz, 22 kHz)
Peak Acoustic Output @ 2 feet: 98 dB SPL
Hum and Noise: Better than -68 dB below full output
Power Output: High Frequency: 5W (7W Peak) RMS (each channel); Low Frequency: 11W RMS (16W Peak)
Other Features (1): Comprehensive downmix capability; Phase correlation indication; Software is field upgradable
Other Features (2): Storage for ten preset monitoring settings for easy recall
Other Features (3): Alternate scales, color mappings and features such as phase correlation or sum & difference may be specified at the time of order



Advanced 8-channel dual 3G/HD/SD-SDI embedded Dolby D and AES audio processor with metering and alternate undecoded Dolby, AES and analog inputs. Mix, monitor, meter and convert to AES and analog.

The AMP1-D8-MDA monitor is the world's first 1RU in-rack audio monitor capable of outputting and/or displaying encoded, multi-channel (up to 8 channels) of audio from Dolby Digital streams decoded from AES and 3G/HD/SD-SDI multi-channel.  The ability to switch seamlessly between encoded or discrete PCM sources, in addition to providing full, simultaneous demuxed output of the multi-channel source offers a significant new operational capability.

These units are ideal for use in VTR bays, mobile production vehicles, teleconferencing installations, multimedia systems, satellite links, cable TV facilities, and on-air radio studios.  Extended HF response reveals potential problems with audio whine or hiss, and electronic rather than acoustic cancellation of bass frequencies provides positive audible detection of reversed polarity audio feeds.  The sleek design provides optimally focused sound for operators in an ultra near field environment (1 to 3 feet) with performance comparable to that of many separate monitor pairs without installation hassles and awkward speaker placements.  This enables a higher SPL for the operator while reducing overall ambient sound and adjacent bay crosstalk.

• Supports decoding and playback of Dolby Digital bitstreams
• Select and assign a channel or channel pair to left, right or both speakers, or select a predefined downmix
• 4 presets let you change the entire system configuration with the press of a single button
• Thorough magnetic shielding allows placement next to sensitive equipment and video monitors

• Backlit LED screen displays phase, signal type, Dolby program, and more
• Eight 26-segment tri-color LED bar graphs display simultaneous VU and PPM
• Sum any combination of up to 8 channels to the left and/or right speakers and selected analog outputs
• Premium quality drivers and power amplifiers deliver excellent frequency response and low distortion
• Power 98dB SPL at 2 feet (0.6m)