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VMQ-4
 
  
4-Channel, Analog, Audio Monitor, 1RU
Product Description

The VMQ-4 audio monitor from Wohler Technologies offers voice quality confidence monitoring of up to 4 analog channels simultaneously. The VMQ-4 only requires a compact 1U of rackspace and is available at a very cost effective price.
 
Because each channel has its own dedicated power amplifier and speaker, the audio sources remain completely separate from input to output. When listening within ultra near field distances of 1 to 3 feet, these discrete speaker outputs provide enhanced source distinction when compared to designs with four inputs mixed into a single output. Each channel has an LED which illuminates when a signal is present at the input allowingthe operator to easily determine at a glance which channels are currently active, very helpful when quick volume adjustments are required. Separate mute buttons are provided for each channel; these together with an LED that indicates channel muting allow an operator to quickly mute one or more channels. A stereo headphone jack has Channels 1 and 2 summed on the left side, and Channels 3 and 4 on the right side.
 
The VMQ-4 is completely magnetically shielded to allow interference-free operation immediately adjacent to all CRT video monitors. The lighter weight and shallower-depth chassis compared to similar-type units, make it ideal for use in portable and mobile vehicle applications.
 
Features
  • Mute button and LED for each channel
  • Space saving 1RU
  • Dedicated Input for each output channel
  • Powerful 94dB SPL at 2 feet (0.6m)
  • 4 balanced analog inputs
  • Signal present LED on each channel input
  • Headphone jack mutes speakers
  • Blowout-proof speakers
 
Benefits
  • Monitoring of 4 discrete audio channels in 1 unit
  • Thorough magnetic shielding for placement next to video monitors
  • Lightweight and shallow-depth chassis
  • Quick and simple installation

List Price: $895
Product Information:

   

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Features
 
Wohler Part Number:8110-0030
Signal Inputs Accepted: 
Monitoring Outputs Available:  
Signal Inputs:4 Balanced Analog Inputs on mini-Phoenix
Other Features (1):XLR Inputs available as an optional extra in place of Phoenix inputs
Audio
Aural Sound Outputs:Headphone, Mutes Speakers;Discrete Speakers x4
Electrical Distortion:< 0.20% at any level below limit threshold
Frequency Response (1/6 octave):300 Hz - 16 kHz (+ or -9 dB)
Peak Acoustic Output @ 2 feet:94 dB SPL
Hum and Noise:Better than -70 dB below full output
Video
# of Video Displays:0
Rack Height:1RU
Weight:7.0 lbs (3.2 kg)
Dimensions:1.75x19x9.7" (45x483x246mm)
Power Consumption:20W Avg/30W Max
Supplied Accessories:AC Power Cord
Rear Panel
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Block Diagram
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