Sennheiser HDI 302 User Manual

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ImpoRtant!
P
 
keep the receiver away from central heating radiators and electric heaters. 
never expose it to direct sunlight.
P
 
use the receiver in dry rooms only. 
tecHnIcal Data 
 
RI 250 (all variants) 
RI 500 / HDI 
302 
modulation 
 
fm, mono 
fm, stereo
carrier frequencies 
 
2.3 mHz 
2.3 mHz / 2.8 mHz
af frequency response 
 
18-18,000 Hz 
18-18,000 Hz
tHD 
 
< 1 % 
< 1 %
Signal-to-noise ratio 
 
typ. 70 db 
typ. 64 db
operating time with one accupack  approx. 6 h 
approx. 5 h
weight with / without accupack 
45 g / 35 g 
45 g / 35 g
max. sound pressure level   
130 dba 
130  dba  /  126 
dba
SpecIal tecHnIcal Data
audio output on the RI 250-S and
Induction loop output on the RI 250-J 
      750 mV / 32 Ω
SennHeISeR tecHnoloGY anD SennHeISeR SeRVIce aRe futuRe-oRIenteD
even after many years, you will still have unlimited pleasure from your infra-red 
sound transmission system. You can buy replacements for wearing parts such 
as ear-cushions and accupacks for many years to come. and in the unlikely 
event that any repairs should be necessary, Sennheiser service departments 
worldwide give moderately priced, fast and competent repairs.
acceSSoRIeS
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ba 151 accupack 
cat. no. 04146
P
 
black ear-cushions, firmer version 
ep1 cat. no. 04655
P
 
white ear-cushions, softer version  
ep2 cat. no. 04656
P
 
l 151 charger for two accupacks 
cat. no. 04457
P
 
l 151-10 charging unit for 10 receivers or 10 accupacks  cat. no. 04494