Ground Zero HYDROGEN Serie Mode D'emploi page 14

TRI MODE operation output allows a subwoofer to be operated in mono mode while the main speakers are playing in stereo. Leave the
crossover switch on "Full" position.
Use 100 volt, non-polar capacitors for a high pass crossover to filter out low frequencies and Air- core or
Ferrit-core coils with a minimum diameter of 1 mm / 0.039" for the lowpass crossover to filter out high frequencies.
The capacitor and inductor values as written in the below table. The front and rear channels of this amplifier get this capability. Only the
rear left and right channels are shown on the following pictures.
Trimode wiring
Trimode crossover
Values for 6dB passive crossover
Frequency Inductor
80 Hz 7,5 mH
100 Hz 6,5 mH
120 Hz 5,5 mH
150 Hz 4 mH
Capacitor
470 uF
330 uF
370 uF
220 uF
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