850iR
Teacher-friendly Design
The 850iR is designed to work in concert with existing multimedia sources while maintaining straightforward, easy operation for the teacher. The back panel features a variety of inputs, outputs and 
integration.
880iR
Multimedia Integration
The 880iR is designed with advanced features that adapt to today’s changing classroom environment, and allow for future multimedia expansion. Projectors, electronic whiteboards and computers all require a robust solution that will deliver clear, full sound reproduction and in addition to the best speech intelligibility for teachers and students. Distributing the audio to every child, regardless of where they are seated, improves the dynamic of interactive classrooms.
< Rear View
<Rear View
Specifications | Features |
Specifications
Features
Standard Carrier Frequencies (IR)
Power Output
Total Harmonic Distortion (THD)
ALD Output (with volume control) Dimensions (W x D x H) 
2.06/2.54 MHz
12 W/Channel (48 W Total) <1% @ 10 W
>73 dB
40 Hz - 20 kHz
Three (3) Inputs
(Stereo RCA x 2; 
Stereo 3.5 mm x 1)
Two
(2) 3.5 mm 
17.3” x 8.5” x 1.75” 
•REDMIKE — small, lightweight,
•3 stereo audio inputs with volume control
•PageFirst technology — emergency page priority (optional
•Speaker choices to fit any classroom
•2 audio outputs for assistive listening
and recording
Environmentally Friendly
Standard Carrier Frequencies (IR) Power Output 
Total Harmonic Distortion (THD)
ALD Output (with volume control) Dimensions (W x D x H)
2.06/2.54 MHz
12 W/Channel (72 W Total) <1% @ 10 W 
>73 dB
40 Hz - 20 kHz
Four (4) Inputs
(Stereo RCA x 3;
Stereo 3.5 mm x 1)
Two (2) 3.5 mm 17.3” x 8.5” x 1.75”
• REDMIKE — small, lightweight, 
•4 stereo audio inputs with volume control
•PageFirst technology — emergency page priority (optional
• Teacher Voice Priority
•Speaker choices to fit any classroom
•Individual speaker on/off switches and
volume for zoning
•2 audio outputs for assistive listening and recording
Highly efficient | WEEE |
Environmentally Friendly
designCompliantconstruction
PageFirst™ Technology
In the event of any page or important message, PageFirst technology mutes the classroom audio system so all students can hear the announcement.
Fall 2008/09 CLASSROOM AUDIO TECHNOLOGY
Highly efficient | WEEE |
designCompliantconstruction
Advanced Features
Teacher Voice Priority – | PageFirst™ Technology – |
Teacher microphone overrides all audio sources | Class never misses PA announcements |
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