Williams Sound WIR 239 User Manual
Page 21

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WIR RX237 Receiver:
Weight:
1.7 oz (50 g) with battery
Material and Color:
ABS plastic, Black
Battery Type, Life:
BAT AP97A NiMH Battery Pack, 6 hours
Modulation Frequency:
2.3 and 2.8 MHz
Frequency Response:
200 Hz to 8 kHz, ± 5 dB
Signal-to-Noise Ratio:
60 dB at 9m
Controls:
Volume control thumbwheel; screwdriver
adjust balance
and (L & R) tone controls
Acoustic Output:
115 dB MAX SSPL90 with EAR 013 (2cc
coupler)
Compatibility:
Compatible with transmitters operating on
2.3 MHz/2.8 MHz
Power Switch:
Built into jack
Approvals:
RoHS, WEEE
Warranty:
5 years, parts and labor*
WIR RX238 Receiver:
Weight:
2.1 oz (60 g) with batteries
Material and Color:
ABS plastic, Black and Grey
Battery Type, Life:
BAT AP97A NiMH Battery Pack, 6 hours
Modulation Frequency:
2.3 MHz and/or 2.8 MHz
Frequency Response:
200 Hz to 8 kHz, ± 5 dB
Signal to Noise Ratio:
60 dB at 30 ft. (9m)
Controls:
Volume control thumbwheel; screwdriver
adjust balance and (L & R) tone controls
Acoustic Output:
112 dB MAX SSPL90 with 2 cc coupler
Compatibility:
Compatible with transmitters operating on 2.3
MHz, 2.8 MHz, or both (stereo)
Power Switch:
Built into receiver “arms”
Ear pads:
Uses EAR 031 foam cushions
Approvals:
RoHS, WEEE
Warranty:
5 years*
*90 days on cords, batteries, power supply and other accessories.