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 fine-tuning controls for easy integration.

Specifications

Standard Carrier Frequencies (IR) 2.06/2.54 MHz
Power Output 12 W/Channel (48 W Total)
Total Harmonic Distortion (THD) <1% @ 10 W
Signal-to-Noise Ratio >73 dB
Amplifier Frequency Response 40 Hz - 20 kHz
Audio Inputs (with volume controls) Three (3) Inputs
(Stereo RCA x 2;
Stereo 3.5 mm x 1)
ALD Output (with volume control) Two (2) 3.5 mm
Dimensions (W x D x H) 17.3” x 8.5” x 1.75”

Features

• REDMIKE — small, lightweight,
easy-to-use microphone
• 3 stereo audio inputs with volume control
• PageFirst technology — emergency page
priority (optional add-on)
• Speaker choices to t any classroom
• 2 audio outputs for assistive listening
and recording
< REAR VIEW

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.
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.

Specifications

Standard Carrier Frequencies (IR) 2.06/2.54 MHz
Power Output 12 W/Channel (72 W Total)
Total Harmonic Distortion (THD) <1% @ 10 W
Signal-to-Noise Ratio >73 dB
Amplifier Frequency Response 40 Hz - 20 kHz
Audio Inputs (with volume controls) Four (4) Inputs
(Stereo RCA x 3;
Stereo 3.5 mm x 1)
ALD Output (with volume control) Two (2) 3.5 mm
Dimensions (W x D x H) 17.3” x 8.5” x 1.75”
< REAR VIEW

Features

• REDMIKE — small, lightweight,
easy-to-use microphone
• 4 stereo audio inputs with volume control
• PageFirst technology — emergency page
priority (optional add-on)
• Teacher Voice Priority
• Speaker choices to t any classroom
• Individual speaker on/off switches and
volume for zoning
• 2 audio outputs for assistive listening
and recording

Advanced Features

Teacher Voice Priority –
Teacher microphone overrides all audio sources
PageFirst™ Technology –
Class never misses PA announcements
| Fall 2008/09 | ClaSSROOM aUDIO TECHNOlOGY 10
Environmentally Friendly
Highly efficient
design
Lead-free
construction
WEEE
Compliant Environmentally Friendly
Highly efficient
design
Lead-free
construction
WEEE
Compliant