Sennheiser RS 175 Owner's Manual

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Using your RS 175 headphone system
RS 175 
| 23
Activating/Deactivating the dynamic bass boost
The dynamic bass boost increases the audio bass response. 
Press the 
BASS 
button either on the headphones or the transmitter.
The bass boost effect switches between on and off modes, as indicated
by the 
BASS 
LED indicator.
BASS LED
Meaning
The bass boost effect is active.
The bass boost effect is inactive.
BASS
SURR
LO
HI
bass boost
direct
OR
BASS
BASS