HELIX M FOUR Instruction Manual page 18

Examples for speaker configurations
4-channel
Component system
+ coaxial system
Front
Left Right
Left Right
Rear
Channel A/B
Highpass filter
HPF 50 - 100 Hz
Channel C/D
Highpass filter
HPF 50 - 100 Hz
Note: The values listed here are empirical values that have been approved as useful in practice. Depending on the size of the loudspeaker
we recommend the following highpass filter settings: ca. 50 Hz for 6.5"/16.5 cm LS; ca. 70 Hz for 5.25"/13 cm LS; ca. 100 Hz for 4"/10 cm LS
18
4-channel
2-way fully active operation
Tweeters
Left Right
Left Right
Mid/bass
Channel A/B
Highpass filter
HPF ca. 3,500 Hz
Channel C/D
Bandpass
LPF
Highpass filter Lowpass filter
50 - 100 Hz ca. 3,500 Hz
3-channel
Component system
+ subwoofer
Front
Left Right
Subwoofer (C/D bridged)
Channel A/B
Highpass filter
HPF 50 - 100 Hz
Channel C/D
Bandpass
LPF
Highpass filter Lowpass filter
ca. 15 Hz ca. 80 Hz