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Perak, Malaysia.


IR-820SP.Infrared Speaker

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IR-820SP.Infrared Speaker

The Infrared Wireless Microphone System using this IR-820SP is a PA system designed for use in the school classrooms assuming that their size is about 10 m × 10 m (30 ft × 30 ft). The IR-820SP is a ceiling-mounted powered speaker with the infrared receiver and offers a wide frequency range of high-quality sound output. It features a digital amplifer for the amplification section, and a full-range speaker for the speaker section. Use of the supplied mounting hardware and optional HY-TB1 Tile Bar Bridge permits it to be versatilely mounted to match a wide range of applications and installation locations. This speaker is combined with an infrared wireless microphone and the IR-802T Infrared Wireless Tuner to make up the infrared wireless microphone system. The infrared microphone system eliminates problems with interference or eavesdropping, allowing simultaneous use in adjacent school classrooms.


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 360쯡 (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 쯡F to 122 쯡F)
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, Ceiling reinforcement ring ...1, Trim Ring ...1, Paper Pattern ...1
Option Tile bar bridge: HY-TB1

Brochure :

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