Sennheiser HDI 302 User's Manual
Contents
1. BA 151 accupack Cat No 004146 E Charger for two BA 151 L 151 2 European version Cat No 004457 L 151 2 120 USA version Cat No 004459 L 151 2 UK UK version Cat No 004458 E 151 10 charging unit for 10 receivers Cat No 004494 Dimensions of the HDI 302 E Plug in mains unit for one L 151 10 NT 92 European version Cat No 003357 NT 92 120 USA version Cat No 003358 NT 92 UK UK version Cat No 003359 E Plug in mains unit for two to five L 151 10 NT 2013 European version Cat No 003433 NT 2013 120 USA version Cat No 003434 NG 2013 UK UK version Cat No 054332 E Replacement earpads black firmer version Spare Part No 037080 E Replacement earpads transparent softer version Spare Part No 040949 Product Variants E HDI 302 2 channel stethoset receiver Cat No 004392 E RI 300 Stereo stethoset receiver Cat No 004378 I SENNHEISER IR Audio Transmission Technology Receivers Apertures for altering the frequency response Two IR receiving diodes behind special plastic Channel selector switch Inserted BA 151 accupack On off volume control HDI 302 two channel stethoset receiver Alternative to charging a complete receiver charging of a spare accupack in the L 151 10 charging unit The two channel and stereo versions of Sennheiser s new stethoset generation operate on the extremely reliable carrier frequencies 2 3 and 2 8 MHz They are an ideal choice for applications where reproduction qua2. I SENNHEISER IR Audio Transmission Technology Receivers General Description The HDI 302 is a professional two channel stethoset receiver for the carrier frequen cies 2 3 and 2 8 MHZ It can be switched between operation on channel 1 2 or stereo and features outstanding speech intelligibility and very good music reproduction It is powered by the environmentally friendly BA 151 accupack Also available is the RI 300 a pure stereo receiver Technical Data NiO CUIATI ON saccttascestsnaressesecientcessassueurias wideband FM stereo Carrier frequencies scscsceseeseeecseeeeeees 2 3 and 2 8 MHz AF frequency re SPONSE eeeceesseeeereeeees 18 18 000 Hz B 1 E E AE etcetera ch T A ATTE lt 1 Signal to noise ratti typ 64 dB Mie SFL icasepeisnnieassnieincinariismnenintins approx 110 dB Operating TMe nkosensunnnninneia approx 5 hrs Weight eeseeseeeeeeees approx 45 g including accupack Features E Wideband stethoset receiver for stereo and two channel applications HDI 302 only E Excellent transmission reliability due to carrier frequencies 2 3 and 2 8 MHz E High speech intelligibility and very good stereo music reproduction E Very easy to use E Powered by environmentally friendly NiMH accupack E Delivery includes HDI 302 1 x HDI 302 two channel stethoset receiver 1 x BA 151 accupack RI 300 1 x RI 300 stereo stethoset receiver 1 x BA 151 accupack 188 mm Recommended Accessories E
3. lity is paramount e g for ste reo music transmissions The most versatile of these receivers is the HDI 302 which can be switched between stereo operation and reception on channel 1 or 2 This option is very convenient when you are for example planning to set up a high quality mini interpretation system You could transmit two translations on channels 1 and 2 and reinforce the floor language via a PA system The RI 300 product variant is a pure stereo receiver which cannot be switched between channels The HDI 302 and RI 300 are fitted with a squelch which mutes the audio output when the IR signal becomes too weak thus avoiding loud hiss The receivers are powered by a BA 151 NiMH accupack which can be charged in the L 151 10 charging unit while remaining in the receivers Optionally the L 151 10 also charges spare accupacks instead of an entire receiver The charging unit is powered by an NT 92 plug in mains unit The L 151 2 charger charges two accupacks and is supplied com plete with mains unit For larger professional applications the charging units can be cascaded Up to five L 151 10 are then powered via an NT 2013 or NG 2013 UK plug in mains unit
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