21
Technical data RS 4 system
Modulation FM stereo
Range up to 100 m
Audio frequency response 20 - 19,500 Hz
THD ‹ 1 %
T 4 transmitter
Power supply 12 V DC via plug-in mains unit NT 92
Power consumption of transmitter approx. 1 VA
RF output power typ. 1.2 mW
Signal-to-noise ratio typ. 70 dB
Frequencies T 4 433.40 MHz, 434.13 MHz, 434.50 MHz (channels switchable)
Frequencies T 4-9 924.80 MHz, 925.80 MHz, 926.50 MHz(channels switchable)
Audio input voltage / Audio connector 10 mV - 3 V / 3.5 mm stereo jack plug + 1/4" (6.3 mm) adaptor
Charging compartments 2, for BA 151
Weight / Dimensions approx. 90 g (without plug-in mains unit) / 134 x 87 x 33 mm
HDR 4 headphone receiver
Transducer principle open
Signal-to-noise ratio › 65 dB
Max. sound pressure level 103 dB
Tuning range HDR 4 433 - 435 MHz, stepless
Tuning range HDR 4-9 923.1 - 927.0 MHz, stepless
Power supply via BA 151 rechargeable accuplug, 2.4 V
Current consumption / Operating time approx. 18 mA / approx. 3.5 hrs per accuplug
Weight / Dimensions approx. 160 g incl. accuplug / 150 x 80 x 200 mm
Supply schedule 1 T 4 or T 4-9 transmitter
1 HDR 4 or HDR 4-9 headphone receiver
1 BA 151 rechargeable accuplug
1 plug-in mains unit, 12 V DC, for 230, 120 or
240 V mains voltage
1 connection cable with 3.5 mm / 6.3 mm (1/4") jack plug adaptor
1 Plastic tubing
1 RCA adaptor stereo (US-Version only)
1 instructions for use
