IR-842PMU-AM
IR-842 Infrared Audio System Main Unit
IR-842PMU-AM
The IR-842PMU is a compact, portable infrared classroom soundfield system, designed for use in conjunction with TOA's IR-200M (hand-held), IR-300 (hands-free), or IR-310 (hands-free) infrared wireless microphones, featuring high sensitivity and clear sound.
Bluetooth® functionality
Power Source
100 - 240 V AC, 50/60 Hz (use of the supplied AC adapter)
Power Consumption
60 W (120 W max. including sub unit speaker output)
Rated Output
40 W (80 W max. including sub unit speaker output)
Frequency Response
20 - 20 kHz, 3 dB
Amplification System
Class D Amplifier
Total Harmonic Distortion
0.1 % (LPF 20 kHz)
Speaker Component
5.5”full range speaker driver
Infrared Wireless Receiver
Wavelength
850 nm
Carrier Frequency
Teacher (CH-A): 3.100 MHz
Student(CH-B): 3.350 MHz
Student(CH-B): 3.350 MHz
Communication Area
Approx. 15 m (49.21 ft) in a space without any obstacle and visible between the infrared microphone and receiver
Reception Angle
120 Degrees
Connetion Terminal For External IR Receiver
RJ-45
Audio Input
MIC: -42 dBV, 2.2 kΩ, electronic balanced, female XLR connector
AUX: -10 dBV, 10 kΩ, stereo pair, unbalanced, headphone jack
Bluetooth input: Ver. 5.0, Max. 10m
AUX: -10 dBV, 10 kΩ, stereo pair, unbalanced, headphone jack
Bluetooth input: Ver. 5.0, Max. 10m
Audio Output
Sub unit speaker OUT: 23.8 dBV, unbalanced, lever terminal
AUX OUT: -10 dBV, 10 kΩ, stereo pair, unbanlanced, headphone jack
AUX OUT: -10 dBV, 10 kΩ, stereo pair, unbanlanced, headphone jack
Signal to Noise Ratio
Over 70 dB (A weighted)
Phantom Power
+24 VDC, switchable, MIC input
Compliance/Certifications
FCC, ICES
Connection Terminal
RJ-45, 2 Way Spring Speaker Terminal Clip
Indicators
Power(green) x 1, IR CH-A(green) x 1, IR-B(green) x 1, IR CH-A Priority(red) x 1, Bluetooth®(blue) x 1, Phantome power(green) x 1
LED Indicator
Power, IR Transmitters, Bluetooth®, XLR, Bluetooth®, and Phantom Power
Operation
IR CH-A volume control, IR CH-B volume control, MIC volume control
AUX IN volume control, AUX OUT volume control, Bluetooth® volume control
AUX IN volume control, AUX OUT volume control, Bluetooth® volume control
Operating Temperature
0 °C to +40 °C (32 °F to 104 °F)
Operating Humidity
Under 90 % RH (no condensation)
Finish
Enclosure: MDF, white, paint
Punched net: Surface-treated steel plate, white, paint
Punched net: Surface-treated steel plate, white, paint
Dimensions
218 (W) x 339.6 (H) x 254 (D) mm (8.60" x 13.37" x 9.99")
Weight
4.97 kg (10.96 lbs)
Included Accessories
AC Power Adapter x 1, Wall Mounting Bracket x 1
*The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by TOA corporation is under license. Other trademarks and trade names are those of their respective owners.
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