Sennheiser Stereo Receiver RI 150 User Manual

RI 150  
IR Audio Transmission Technology | Receivers  
General Description  
The RI 150 is an extremely lightweight wideband stethoset receiver which uses the  
carrier frequency 2.3 MHz, thus offering excellent transmission reliability. It features  
an easy-to-operate on/off/volume control and is powered by the environmentally  
friendly BA 151 rechargeable NiMH accupack delivered with the receiver. The audio-  
logy variant RI 250 is fitted with an additional, recessed balance control. The RI 250 J  
is fitted with a 3.5 mm jack output socket.  
Technical Data  
Modulation ......................................... wideband-FM, mono  
Carrier frequency......................................................2.3 MHz  
AF frequency response...............................18 – 18,000 Hz  
THD................................................................................... < 1 %  
Signal-to-noise ratio............................................typ. 70 dB  
Max. SPL .........................................................approx. 110 dB  
(RI 250 and RI 250 J: approx. 130 dB)  
Audio output  
(RI 250 J only) ............................ 3.5 mm jack (0.7 V/30 )  
Operating time ................................................ approx. 6 hrs  
Weight ............................. approx. 45 g including accupack  
Features  
Wideband stethoset receiver  
Extremely reliable transmission due to carrier frequency 2.3 MHz  
Extremely lightweight – only 45 g  
Excellent speech intelligibility and good music reproduction  
Very easy to use  
Operates on environmentally friendly rechargeable NiMH accupack  
Delivery includes:  
RI 150: 1 x RI 150 mono stethoset receiver, 1 x BA 151 accupack  
RI 250 and RI 250 J: 1 x RI 250 or RI 250 J mono stethoset receiver,  
1 x BA 151 accupack, 1 set of adhesive tape for altering the frequency response  
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 RI 150/RI 250/RI 250 J  
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 2013-120USA 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  
RI 150: mono stethoset receiver  
Cat. No. 004383  
RI 250: mono stethoset receiver, audiology variant  
with balance control and higher SPL  
RI 250 J: Mono stethoset receiver with audio output socket  
Cat. No. 004373  
Cat. No. 004391  
 

Sharp CRT Television 36C230 User Manual
Sonance Stereo Receiver LR2 User Manual
Sony Car Stereo System CDX MP450X User Manual
Sony Digital Camera VCL 2030 S User Manual
Sony Ericsson Cell Phone Z520 User Manual
Sony Marine Radio PCS 1 User Manual
Sony MiniDisc Player MX E500 User Manual
Sony Pet Fence XL 2100U User Manual
Sony Stereo System CDP CX53 User Manual
Sony VCR CCD TRV408 User Manual