15. Main sw
itch
1 Input Volume
Controls volume level of subwoofer
Be gentle on the volume knob,
please
remember that certain sound signals may
contain a lot of energy.
2 Frequency
Frequency crossover
Variable control ranging from 40Hz to 250Hz
(-3dB) provides optimum setting of subwoofer
crossover frequency to match crossover frequency
of Home Theatre components.
The filter slope is 18 dB/octave. You can
hereby change the character of the woofer,
depending on what you prefer (more or less
deep) and matched to your other speakers.
On modern amplifiers you commonly have the
possibility to set the size of the loudspeakers
(small / big etc). If you have small front
speakers, you should set the size to small.
Thus, they will reproduce middle bas, mid-
range and treble much better - leaving the
deep bass tones alone to the subwoofer.
3 Phase
Variable control for 0-180 phase adjustment
The technical difference between these two
extremes (0 and 180 degrees) corresponds to
n a normal installation, this should be set to 0.
The setting will have impact on the sonic
characteristics, especially the co-operation
with the front speakers.
Please note that the difference between the