HELIX PP50 DSP Manual page 22

MODE/DIP switches functionalities
The PP50 DSP MODE/DIP switches can be used to set basic functions. Major DSP settings can be activa-
ted and changed using the switches.
Note:
tions change.
Important: If you use front or rear loudspeakers with an impedance of 2 Ohms, make sure that
Functionality of the MODE/DIP-Switches
with the „factory setup"
Speaker load front / rear channels
Switch 1 OFF = 4 Ohms
(Subwoofer channels can always handle 2 Ohms
loads)
Subwoofer mute
Switch 2
OFF = Subwoofer activated
ON = Subwoofer deactivated
Switch 3 Switch 4
OFF OFF
OFF ON
ON OFF
ON ON
Filter settings for front / rear channels
Switch 5 ON =
Switch 6 ON =
Switch 7 ON =
Switch 8 ON =
Switch 9 ON =
Switch 10 ON =
Time alignment
Switch 11 Switch 12
OFF OFF
OFF ON
ON OFF
ON ON
22
ON = 2 Ohms
= amp. gain +/- 0 dB
= amp. gain + 4 dB
= amp. gain - 2 dB
= amp. gain + 2 dB
+ 3dB at 16 kHz
- 5dB at 4,5 kHz Q=3,5
- 5dB at 1,8 kHz Q=7
+ 4dB at 1 kHz Q=4
- 5dB at 200 Hz Q=7
+ 3dB at 60 Hz
= deactivated
= small cars
= mid sized cars
= large cars
Switch 13 Switch 14
OFF OFF
OFF ON
ON OFF
ON ON
Switch 15 Switch 16
OFF OFF
OFF ON
ON OFF
ON ON
Subwoofer
Switch 17 OFF = 12 dB slope
ON = 24 dB slope
Switch 18 Switch 19
OFF OFF
OFF OFF
OFF ON
OFF ON
ON OFF
ON OFF
ON ON
ON ON
cutoff frequency
= linear
= 100 Hz / 12 dB
= 75 Hz / 12 dB
= 50 Hz / 12 dB
cutoff frequency
= linear
= 100 Hz / 12 dB
= 75 Hz / 12 dB
= 50 Hz / 12 dB
Switch 20 cutoff freq.
OFF = linear
ON = 120 Hz
OFF = 100 Hz
ON = 90 Hz
OFF = 80 Hz
ON = 70 Hz
OFF = 60 Hz
ON = 50 Hz
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