TOA IR-820SP Infrared Wireless Speaker, Wide Dispersion for Classroom System
Built-in infrared receiver and 20W digital amplifier
Unique wide-dispersion acoustic structure, employing innovative TOA technology to achieve uniform output over a wide radius
Bass-reflex speaker system achieving a wide frequency range and high power handling capability
Easy installation with quick optimally positioned ceiling mounting be used in conjunction with IR-820T infrared Wireless Tuner
Specification
Power Source 24 V DC (supplied from IR-802T)
Power Consumption 4.4 W (based on UL standard)
Rated Output 20 W
Frequency Response 100 Hz – 20 kHz (-10 dB) at installation in 1/2 free sound field
Amplification System Class D
Distortion 5% or less (rated output, A-weighted)
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 ø300 mm
Connection Cable CAT-5 UTP
Operating Temperature -10°C to 50°C
Operating Humidity 90% RH or less (no condensation)
Finish Enclosure: Steel plate, plating – Baffle : Fire-resistant ABS resin (resin – material grade: UL94V-0), white – Punched net : Steel plate, white. Filter section : Polycarbonate, optical cut filter
Dimensions ø320 × 205 (D) mm
Weight 3.4 kg
Accessories Safety wire × 1, Ceiling reinforcement ring × 1, Paper pattern × 1 Option Tile bar bridge: HY-TB1
