Sennheiser Switch HDI 302 User Manual

HDI 302  
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  
Modulation ......................................... wideband FM, stereo  
Carrier frequencies ....................................2.3 and 2.8 MHz  
AF frequency response...............................18 – 18,000 Hz  
THD.....................................................................................< 1%  
Signal-to-noise ratio............................................typ. 64 dB  
Max. SPL .........................................................approx. 110 dB  
Operating time ................................................ approx. 5 hrs  
Weight ..........................approx. 45 g (including accupack)  
Features  
Wideband stethoset receiver for stereo and two-channel applications  
(HDI 302 only)  
Excellent transmission reliability due to carrier frequencies 2.3 and 2.8 MHz  
High speech intelligibility and very good stereo music reproduction  
Very easy to use  
Powered by environmentally friendly NiMH accupack  
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  
Recommended Accessories  
BA 151 accupack  
Cat. No. 004146  
Charger for two BA 151  
L 151-2 European version  
L 151-2-120 USA version  
L 151-2-UK UK version  
L 151-10 charging unit for 10 receivers  
Plug-in mains unit for one L 151-10  
NT 92 European version  
NT 92-120 USA version  
NT 92-UK UK version  
Cat. No. 004457  
Cat. No. 004459  
Cat. No. 004458  
Cat. No. 004494  
137 mm  
Dimensions of the HDI 302  
Cat. No. 003357  
Cat. No. 003358  
Cat. No. 003359  
Plug-in mains unit for two to five L 151-10  
NT 2013 European version  
NT 2013-120 USA version  
Cat. No. 003433  
Cat. No. 003434  
NG 2013-UK UK version  
Cat. No. 054332  
Replacement earpads, black, firmer version  
Replacement earpads, transparent, softer version  
Spare Part No. 037080  
Spare Part No. 040949  
Product Variants  
HDI 302: 2-channel stethoset receiver  
RI 300: Stereo stethoset receiver  
Cat. No. 004392  
Cat. No. 004378  
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