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820iR - Professional Quality Classroom Audio PDF Print E-mail

 

Product Highlights

  • 2 stereo audio inputs with volume control
  • Speaker choices to fit any classroom
  • Audio output for assistive listening or recording
 820-Front-Rear

The 820iR delivers the essential features necessary to amplify a standard classroom environment. This system is compact and affordable. Choose from a wide range of Lightspeed speaker systems to ensure clear speech intelligibility for the entire classroom.


Product Resources

Watch the demonstration video Download Brochure
View product tutorial Download Manual
Download summary of the pedagogical benefits and anecdotal evidence


Features

 

  • Infrared wireless technology
  • Two microphone channels
  • Multiple microphone options
  • Multiple speaker choices deliver optimal sound in all rooms
  • Two speaker outputs to power up to 4 speakers
  • Two (2) stereo audio inputs with volume control(Computer, DVD/VCR, MP3, etc.)
  • One (1) auxiliary output with volume (sends audio to personal FM system & recorder)
  • 8-band graphic equalizer
  • Quick-install infrared sensor
  • Ability to power up to 3 IR sensors for large or odd-shaped rooms
  • Alternate frequency groups available - 4 compatible channels
  • 5-year warranty (1-year on batteries)

Microphone Options

The REDMIKE® is a pendant-style wireless microphone that can be worn comfortably around the teacher’s neck or used as hand-held for student use.  The 820iR is equipped with two independent channels allowing the use of two microphones simultaneously.  Each system includes a single REDMIKE classroom microphone with an option to upgrade to the new REDMIKE®VC microphone with volume control.

REDMIKE REDMIKE®
REDMIKE-VC REDMIKE®VC

LT71

 LT-71 LightMic
The LT-71 LightMic™ microphone/transmitter is light-weight and durable. Extra microphones allow students to utilize the benefits of classroom audio and be heard among their classmates.
HM70 HM70 Handheld
IR hand microphone to complement the LT-71. Perfect for students to pass around the classroom.HM70 Handheld IR hand microphone to complement the LT-71. Perfect for students to pass around the classroom.

Speaker Options

Single Speaker Solutions
Lightspeed's flat-panel speakers produce a very wide dispersion of sound, resulting in excellent distribution throughout the entire classroom from a single speaker. Installation is very simple and speech intelligibility is superb.

MCQ

CNXQ

NXQ
MCQ: Multimedia Ceiling Speaker CNXQ: Flat-panel Ceiling Speaker NXQ: Flat-panel Wall Speaker


Traditional Speaker Solutions

For larger or multimedia classroom applications, we offer a line of traditional speakers, which places multiple speakers around the classroom. These speaker solutions cover classrooms up to 150 square metres and will deliver a full range of sound.

DRQ

WMQ
DRQ: Ceiling Speaker WMQ: Mini-wall Speaker

 

Product Specifications

Power Output (System Total) 12 W per Channel x2 (24 W Total)
Frequency Response
 40 Hz – 20 kHz
Power Supply (UL Listed)
 24V / 2.5A
Signal-to-Noise Ratio
 > 73dB
Image and Spurious Rejection
 > 70dB
Total Harmonic Distortion
 < 1% @ 10 W
Equalizer
 8-band Graphic EQ
Standard Sub-carrier Frequencies (iR)
 2.06/2.54 MHz
Alternate Sub-carrier Frequencies (iR) 3.20/3.70 MHz
Dimensions (W x D x H)
 24.5 x 22 x 4.5cm
Weight
 1.77 kg
Certifications
 CE, WEEE, RoHS

Inputs
Audio Inputs w/ Volume Control
 (2) Stereo RCA Inputs
iR Wireless Microphone Input
 No
Sensor Inputs (F-Connector)
 1 Input (Capability to power up to 3)
Power
 24V/2.5A DC
PageFirst w/ sensitivity adjustment
 No

Outputs
ALD/Aux Audio Outputs w/ volume control
 (1) 3.5mm on Front Panel
Speaker Outputs
 (2) Binding Post Connectors
Speaker On/Off Switches
 No
Speaker Volume Controls
 No
Transmitter Charging
 (2) on Back Panel

Infrared Sensor
Type
 External
Power
 From Receiver/Amplifier
Reception Coverage
 Rooms up to 150 m2 (ceilings 3.66 m or less)
Cable
 15.24 m, 75 ohm plenum-rated coax
Mounting
 Ceiling Clip/Wall Bracket
Receiving Diodes
 32

Environmentally Friendly
Environmentally Friendly

Lightspeed

 

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