Pro Digital System with Ceiling Speakers and Wall Sensors


Pro Digital System with Ceiling Speakers and Wall Sensors

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* Manufacturer’s suggested retail price. Actual dealer price will vary.
+ Description and Overview 

This four-ceiling-speaker package features two separate wall sensors — useful for odd-shaped rooms or rooms with high ceilings, hanging student art, projector mounts, or other challenging obstructions.


  • One-Touch operation: Teachers need only turn on the mic to start teaching. The receiver automatically wakes up from its energy-saving sleep mode and goes to sleep when the mic is turned off.
  • Talk without dropout: Built-in sensor with advanced optics ensure consistent signal pick-up
  • Feedback suppression: The Adapto light reassures you it is automatically suppressing feedback – before it starts
  • Two channels for more dynamic teaching: Encourage student participation with a pass-around mic; or amplify two teachers at the same time
  • Easy audio control: Quickly and easily adjust the volume level of streaming audio and video content, CDs and MP3 files
  • Optimize speech clarity: OptiVoice, FrontRow’s patented technology, is specially designed to emphasize critical speech sounds, so kids comprehend even more
  • Easy recharging: Up to two transmitters can be charged directly from the receiver
  • External sensor ports: Get great signal pickup in almost any classroom with convenient ceilings or wall sensors
  • Simple speaker hook-up: Color-coded stereo push terminals make speaker connection quick and easy
  • Auxiliary output and volume control: Connect to computer to record all audio content for podcasting, or connect personal FM systems for the hearing impaired
  • Complete tech integration: Easily connect a computer or other technology to integrate true stereo audio into lessons
  • Corner-compatible sensor mounting bracket

Technical Specifications

940R Receiver/Amplifier Wall Sensor Distributed Ceiling Speaker
Transmission type: Infrared Operating frequency: 2.3MHz & 2.8MHz Average sensitivity: 86dB-SPL 1W/1M
Receiving frequency: 2.3MHz & 2.8MHz Operating range: 18.5m/60ft line-of-sight (typical) Speaker type: coaxial: 10cm/6.5in woofer, 2.5cm/1in tweeter
Frequency response: 50Hz to 20kHz Signal/Power interface: RCA-female jack Impedance: 8Ω nominal
Signal-to-noise: >65dB (system) Number of IR photodiodes: 3 Continuous power: 30W
THD: <1% @ 1kHz into 8Ω Power indicator LED: Green Peak power: 45W
Maximum audio output power: 2 x 10w (8Ω), 2 x 20w (4Ω) Reception area: 139m2/1500ft2 (with 2 wall sensors) Frequency response: 60Hz to 20kHz
Power supply: 19VDC at 3.16A Dimensions (wxhxd): 7.5 x 3.9 x 6.0 cm / 2.9 x 1.5 x 2.4 in Dimensions (Dia x d): 21.7 x 7 cm / 8.5 x 2.75 in
Size (wxhxd): 21.5 x 4.75 x 19cm/8.5 x 1.75 x 7.5in Weight: 80g/2.5oz Weight: 1.1kg/2.5lbs
Weight: .94kg/2.11lbs Mounting: Corner-compatible wall mount bracket provided Mounting: Metal tile bridge, steel back enclosure, built for Plenum spaces
Operating range: 18.5m/60ft line-of-sight (typical) Sensor wire: Two 15.25m/50ft RG59/u coaxial cables CL2P double shielded, UL listed Plenum rated jacket available  
Reception area: 139m2/1500ft2 (typical) with ceiling sensor    
940R Receiver/Amplifier    
Input power jack    
1.3mm mic charge jack    
3 RCA jacks for external sensor connection    
4 quick-connect speaker terminals    
RCA aux out jack    
2 RCA stereo aux in jacks (with stereo sound output)    
User Controls
940R Receiver/Amplifier    
Microphone A volume    
Microphone B volume    
Two auxiliary audio volume    



Installer Guides Pro Digital Installer Guide    
User Guides Pro Digital User Guide    
  Pro Digital Training Vidéo-Formation: FrontRow Pro Digital  
Technical Specifications Pro Digital Specifications    
Warranty Warranty Info (.pdf)    


+ Product Line 

Pro Digital

Pro Digital™: Digital Voice Clarity

The Pro Digital was designed to disappear into the room. A tiny package with crisp digital stereo sound, it works with your existing 8 Ohm speakers …MORE

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