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  • Wohler AMP1-S8-MDA

Wohler AMP1-S8-MDA

  • Brand: Wohler
  • Product Code: AMP1-S8-MDA
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Wohler Part Number: 8101-0090
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
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 (DIP Selectable on rear panel)
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
Level Meters: 8 x 26 Segments (Vertical)
Level Meter Scale: 0 to -66 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



8-channel (2 groups) 3G/HD/SD-SDI audio processor with alternate AES and analog inputs. Mix, monitor, meter and convert to AES and analog.

The AMP1-S8-MDA monitor is an exceptionally high-qualityaudio monitor system offering premium quality 8-channel analog, AES/EBU, 3G/HD/SD-SDI multi-channel audio monitoring and conversion as well as professional level metering. These units contain 3 audiophile-quality drivers and three power amplifiers; 3 speakers and amplifiers reproduce midrange and high frequency information in stereo, while the third amp/driver combination handles summed LF information below the 500 Hz crossover point.

These units feature eight 26-segment highresolution, tri-color LED level meters showing simultaneous VU and PPM for superior levelmetering. The front panel features an innovative LCD display of phase/polarity relationships. Output limiter circuits are incorporated to protect the speakers, and extensive magnetic shielding allows placement immediately adjacent to video monitors with no color impurities.

The unique design provides optimally focused sound for operators in an ultra near-field (1 to 3 ft.) working environment and offers performance comparable to that of many separate monitor pairs, without the installation hassles, awkward speaker placements and “added-on” look. This provides for a higher SPL for the operator while reducing overall ambient sound and adjacent bay crosstalk. 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 out-of-phase (reversed polarity) audio feeds. A headphone jack is provided on the front panel that automatically mutes the speakers.

These units are ideally suited for use in space-critical environments such as TV facilities, studios, VTR bays, mobile production vehicles, satellite links and indeed, any rack mount environment where multi-channel audio monitoring is required.