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.






The new 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 850iR is equipped with two independent channels allowing the use of two microphones simultaneously.  Each system includes a single REDMIKE classroom microphone.



Speaker Choices

LightSPEED offers multiple speaker options to provide optimum sound in every type of classroom.



Product Features

• Infrared wireless technology
• Two microphone channels
• REDMIKE™ classroom microphone
• PageFirst™ Technology
• Multiple speaker options deliver optimal sound in all rooms
• Four speaker outputs with on/off switches
• Three stereo audio inputs (TV, CD/DVD, PC, etc.) labeled for specific source
• IR wireless microphone input to add 2 addtional channels in a room (4 total)
• Two auxiliary outputs (send audio to personal FM system & recorder)
• 8-band graphic equalizer
• Built-in transmitter charging jacks
• Quick-install IR sensor
• Two IR sensor inputs, ability to power up to 6 sensors for larger or odd-shaped rooms
• Multiple microphone options
• 5-year warranty (1-year on batteries)

Warranty: 5-Years on all major components

Lightspeed Classroom Audio Systems are guaranteed against malfunction due to defects in materials and workmanship for a period of FIVE (5) YEARS, beginning at the date of the purchase invoice. Batteries are guaranteed for one year. The product will be repaired or replaced at Lightspeed's option during the warranty period. Warranty does not extend to finish appearance, or malfunctions due to abuse or misuse. Our Service Department (800.732.8999, M–F 5:00 a.m – 5:00 p.m. PST) will handle all your troubleshooting and repair/replacement needs.


Product Specifications

Overall System

• Standard Carrier Frequencies (IR): 2.06/2.54 MHz
• Alternative Carrier Frequencies (IR): 3.2/3.7 MHz
• Frequency Stability: ± 3%
• Maximum Deviation: ± 50 Hz
• Dynamic Range: > 73 dB
• Signal-to-Noise Ratio: > 73 dB
• Frequency Response: 40 Hz – 20 kHz
• 8-band Graphic Equalizer

Receiver Specifications

• Receiver Type: Superheterodyne
• Receiver Sensitivity: 6 µV for 60 dB S/N
• Image and Spurious Rejection: > 70 dB
• Reception Selectivity: 40 kHz
• Squelching Mute Level: Threshold 3.2 µV
• Sensor Inputs (F-Connector): 2 Inputs (Capability to power up to 6)
• Sensor Short Indicator: Yes

Amplifier Specifications

• Power Output (System Total): 12 W per Channel x4 (48 W Total)
• Total Harmonic Distortion: < 1 % @ 10 W per Channel
• Speaker Load Impedance: 4 Ohms / Output
• Power Supply (UL Listed): 24 V / 2.5 A
• Weight: 7 lb.
• Dimensions (W x D x H): 17.3 x 8.5 x 1.75

Inputs

• Auxiliary Audio (w/ Volume Control): (3) Dual RCA (1) Stereo 3.5mm
• 800ix: (1) 1/4"
• Infrared Sensor: 2
• Power: 24V/2.5A DC on Back Panel

Outputs

• Auxiliary Audio (w/ Level Control): (2) 3.5mm on Back Panel
• Speaker Outputs: (4) Binding Post Connectors
• Speaker On/Off Switches: (4) on Back Panel
• Transmitter Charging: (2) on Back Panel

REDMIKE™ Specifications

• Standard sub-carrier frequencies: 2.06/2.54 MHz
• Audio Distortion: <1%
• Integrated Microphone Type: Omni-directional Electret
• Microphone Input Jack for Auxiliary Audio Source: 3.5mm
• Microphone Input Impedance: 2.2 kΩ
• Battery Charger: Cradle Charger (charges two REDMIKE microphones)
• Cradle Charger Input: Mini DC Jack
• Cradle Charger Output Jack: 3.5mm DC Jack for LT71 or HM-70 Microphones
• Battery Power: 1 AA NiMH Rechargeable Sensing Battery (Part # BA-NH2A27)
• Dimensions (W x D x H): .9" x 1" x 3.5"
• Weight (with batteries): 2.1 oz

LightMic™ Specifications

• Audio Distortion: <1%
• Built-in Microphone: Omni-directional Electret
• Battery Power (1-year warranty): 2 AA NiMH Rechargeable
• Dimensions (W x D x H): 1.4" x 1" x 4.6"
• Weight (with batteries): 3.7 oz

Hand Held Microphone/Transmitter

• Audio Distortion: <1%
• Microphone element type: Uni-directional, Dynamic
• Batter Power (1-year warranty): 2 AA NiMH Rechargeable
• Weight (with batteries): 7.4 oz

Sensor

• Type: External
• Power: From Receiver/Amplifier
• Reception Coverage: 360 degrees, ceiling mount
• Cable: 50 ft, 50 ohm Plenum rated Co-Ax
• Mounting: Ceiling Clip/Wall Bracket
• Diodes: 32