IR-820SP Infrared Speaker

IR-820SP

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.

มีเครื่องขยายเสียง คลาส D 20Wในตัว
ใช้กระแสไฟ DC 24V (จากครื่องรับอินฟราเรด)
มีจุดรับสัญญาณอินฟราเรด 4 จุด รอบลำโพง
เป็นลำโพง ขนาด 12เซนติเมตร
มี LED แสดงสถานะการทำงาน
ขั้วต่อแบบ RJ-45 โดยใช้สาย CAT-5UTP

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 MHzReception Angle360゜ (Horizontal)

Connection Terminal RJ-45

LED Indicator Power (green) × 1Mounting

Hole φ300 mm (φ11.81")

Usage CableCAT-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)

Weigh t3.4 kg (7.5 lb)

Accessory Safety wire …1, Ceiling reinforcement ring ...1, Trim Ring ...1, Paper Pattern ...1

Option Tile bar bridge: HY-TB1