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Home   Audio   Contemporary Research SMG-40

Contemporary Research SMG-40
Sound Masking Generator - 70V Transformers, 4/8 Ohm Speakers

Manufacturer SKU: 5103-001
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MSRP: $496.00
Our Price: $422.00
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Product Highlights
  • Employs pink noise optimized for speech privacy with bass, treble and level adjustment
  • 3.5mm stereo Music input with independent level control
  • Outputs 40W at 25V and 4/8 Ohm
  • Dual RJ 45 outputs compatible with Cambridge Qt Emitters
  • Provides 3 pin captive screw terminal for 25V and 4/8 Ohm output
  • Includes contact closure input for amplifier mute

Audio Device: Sound Masking

  • $422.00

    Sound Masking

  • $300.00

    Mixer/Amp

  • $300.00

    Mixer/Amp & Mount

 
  • Product Details
  • Specifications
  • Downloads (2)
  • Reviews (0)
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Contemporary Research SMG-40 Sound Masking Generator has the power to drive over 30 25V plenum and ceiling speakers, 70V transformer, 4/8 ohm speakers, and over 100 Cambridge Qt® Emitters. Many masking generators use standard pink noise while the SMG-40 filtered noise is optimized for masking speech in real-world applications.

Housed in a compact metal enclosure, the amplifier can output 40W audio over two RJ-45 ports and a 3-pin Phoenix terminal for 25V, or 4/8 Ohm speakers and 70v transformer. A stereo Music input and level control is available for BGM applications. A contact closure input can mute the amplifier when activated.

Audio:
Amplifier: 40W RMS Class D, highly energy-efficient, operates with very little heat
Masking Filter: Pink noise optimized for speech privacy
Front Panel:
Power: Green LED
Masking: Masking level, Bass level, Treble level control
Music: Level control
Back Panel:
Power: 2-pin Phoenix connector, 24 VDC, 2A max
Music: Stereo line-level 3.5 mm jack, unbalanced, 7.5K ohms impedance, summed to mono
Audio Mute: 2-pin Phoenix connector, closure mutes amplifier output
Audio Output: Two RJ-45 Cat5 cable output for Cambridge Qt Emitters, Three-pin Phoenix connector for Com (GND), 25V, and 4/8 Ohms
Physical:
Dimensions: 5.5" [140mm] W (6.46" [168mm] inc. flange) x 2.375" [60mm] H x 3.875" [98mm] D
Weight: 1 lbs [454g]
Enclosure: All aluminum with durable black powder coat paint, flanges for surface mounting
Additional Specs:
Includes : PS 24-2 24 VDC 2 A Power Supply, One 2-pin, one 3-pin Phoenix connector
Warranty: 2 Years

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Downloads:

  • Contemporary Research SMG-40 Manual (PDF)
  • Contemporary Research SMG-40 CAD Drawing (PDF)

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