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8 Channel, AES/Analog, Audio Monitor, 2RU
Product Description

The AMP2-S8DA monitor is an exceptionally high-quality audio monitor systems offering premium quality 8-channel analog, AES/EBU 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 53-segment high-resolution, tri-color LED level meters showing simultaneous VU and PPM for superior level-metering. 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.
  • Front panel summing of any combination of up to 8 channels to the left and/or right speakers and selected
  • Eight 53-segment tri-color LED bar graphs displaying simultaneous VU and PPM
  • Headphone jack (mutes speakers)
  • Premium quality drivers and power amplifiers
  • Audible indications of phase/polarity problems
  • Phase-correlation display of selected channels
  • Output limiter protected speakers
  • Thorough magnetic shielding prevents interference from nearby equipment.
  • Electronic cancellation provides detection of out-of-phase (reversed polarity) audio feeds.
  • Excellent frequency response and low distortion
  • Focused sound, reduces adjacent bay crosstalk
  • Ultra near-field offers exceptional monitoring performance.
  • Small rack space requirements make them perfectly suited for use in space-critical environments

List Price: Consult your local dealer.
End of Life, Not available for purchase
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Wohler Part Number:8101-0120
Signal Inputs Accepted:  
Monitoring Outputs Available:    
Signal Inputs:8 Balanced Analog Inputs on DB-25; 4 Unbalanced AES Input Pairs on BNC; 4 Balanced AES Input Pairs on DB-25
Signal Outputs:2 Balanced Analog Outputs Summed from Selected Source on XLR; 8 Balanced Analog Outputs from Selected Source on DB-25; 4 Balanced AES Loop-through Output Pairs on DB-25
Data Ports:1 RS-232 Connector for programming, setup and diagnostics; OPTIONAL: 1 DB-9 Connector for remote selection of input sources
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
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
Aural Sound Outputs:Wohler Speaker System;Headphone, Mutes Speakers
Acoustic Distortion:6% or less at worst case frequencies above 120 Hz including cabinet resonance, typically < 1.5%
Electrical Distortion:<0.15% at any level below limit threshold
Frequency Response (1/6 octave):80 Hz - 18 kHz (+ or -5 dB); (-10 dB @ 55 Hz, 21 kHz)
Peak Acoustic Output @ 2 feet:104 dB SPL
Hum and Noise:Better than -68 dB below full output
Power Output:High Frequency: 10W (14W Peak) RMS (each channel); Low Frequency: 25W RMS (35W Peak)
Level Meters:8 x 53 Segments (Vertical)
Level Meter Threshold:0, +4, +6, +8 dBv: switch selectable
Level Meter Scale:0 to -66 dB
Level Meter Dynamics:Simultaneous VU & PPM
Level Meter Resolution:1 dB
# of Video Displays:0
Display Characteristics:LCD
Display Modes:Data Only
Rack Height:2RU
Weight:18.0 lbs (8.2 kg)
Shipping Weight:22.0 lbs (10.0 kg)
Dimensions:3.5x19x14" (89x483x356mm)
Power Consumption:72W Max
Supplied Accessories:Power Cord
Rear Panel
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Block Diagram
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