HELIX PP50 DSP Manual page 23

Functionality of the MODE/DIP-Switches
Speaker load front / rear channels
Switch 1 OFF = 4 Ohms
(Subwoofer channels can always handle 2 Ohms
load)
Subwoofer mute
Switch 2
OFF = Subwoofer activated
ON = Subwoofer deactivated
Note: If the subwoofer has been deactivated using
front and rear channels will also be deactivated.
This improves bass reproduction of the remaining
loudspeakers.
Switch 3 Switch 4
OFF OFF
OFF ON
ON OFF
ON ON
ON = 2 Ohms
= amp. gain +/- 0 dB
= amp. gain + 4 dB
= amp. gain - 2 dB
= amp. gain + 2 dB
Subwoofer type selector
Switch 5
OFF = PP 7E, PP 7S
ON = PP 5E
Note: The correct setting of this switch is essential
to optimal sound reproduction.
AUX input mode
Switch 6
OFF = MP3 mode
ON = Navigation mode
MP3-Mode = AUX input signal will be routed to
front and rear channels, input will be activated
when signal on the input is detected.
Navigation mode = AUX input signal will be routed
to front channels only, input will be activated when
signal on the input is detected, rear channels still
have radio signal with - 20 dB muting.
Optical input 48 kHz (Interface required)
Switch 7
OFF = optical input deactivated
ON = optical input activated instead of highlevel
input
Switch 8 - 20 Disabled
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