IR Integrated Wide-dispersion Ceiling Speaker

IR Integrated Wide-dispersion Ceiling Speaker

IR Integrated Wide-dispersion Ceiling Speaker

IR-820SP

The IR-802 Infrared Wireless Classroom System consists of an IR Integrated Wide-dispersion Ceiling Speaker (IR-820SP) with a built in Infrared Receivers and Amplifier, an IR Wireless Tuner (IR-802T) and hands-free (IR-300M) IR Wireless Microphone, all connected by one CAT-5 cable. This system provides uniform sound throughout the classroom. Cost effective and providing quick installation, this system requires only one wide-dispersion Ceiling Speaker where conventional classroom systems rely on four ceiling speakers. The advantages of using an IR Wireless Classroom system is confidentiality, no longer a need to worry about using up all the available UHF channels, intelligible sound transmission, and the reduction of teacher fatigue during class.

Power Source 24 V DC (supplied from IR-802T)
Power Consumption 4.4 W (based on UL standards)
Rated Output 20 W
Frequency Response 100 Hz - 20 kHz (-10 dB) at installation in 1/2 free sound field
(Measured by installing the unit in the center of a ceiling.)
Amplification System Class D
Distortion 5 % or less (rated output)
Speaker Component 12 cm (4.72") cone-type
Infrared Wireless Receiver
Wavelength 870 nm
Carrier Frequency Teacher (Channel A): 3.100 MHz
Student (Channel B): 3.350 MHz
Reception Angle 360゜ (Horizontal)
Connection Terminal RJ-45
LED Indicator Power (green) × 1
Mounting Hole φ300 mm (φ11.81")
Usage Cable CAT-5 UTP
Operating Temperature -10 ℃ to +50 ℃ (14 ゜F to 122 ゜F)
Operating Humidity 90 %RH or less (no condensation)
Finish Enclosure: Steel plate
Baffle: Fire-resistant ABS resin (resin material grade: UL94V-0)
Punched net: Steel plate
Filter section: Polycarbonate
Dimensions φ320 × 205 (D) mm (φ12.6 × 8.07)
Weight 3.4 kg (7.5 lb)
Accessory Safety wire …1
Tile bar bridge: HY-TB1

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