TOA IR-820SP Infrared Speaker: Lựa chọn hàng đầu tại Johor Bahru JB Malaysia HMI Audio Visual Sdn Bhd

Mô tả

Product Details:

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 amplifier 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.

Specification

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