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USING THE SYSTEM
9
Sub6 controls (fig. G)
Level
This adjustement allows to set the sound level of the subwoofer relative to that of the main loudspeakers. It should also be
optimised taking into account the actual location of the subwoofer and its acoustic consequences: for example in an angle
the 6 dB acoustic gain should be compensated by an equivalent attenuation to maintain the overall balance of the system.
Mute
This switch will turn out the output signal of the subwoofer channel (making it silent does not require to switch the power off).
When muting the subwoofer the high pass filters used for the main speakers will remain active.
Hi Pass
This area is dedicated to the setting of the high pass filters intended for the main speakers in a 2.1 configuration. The “Defeat”
switch allows to disable (ie by-pass) these filters. The 75 Hz / 100 Hz switch allows to select the cut-off frequency, in order to
optimise the acoustic recombination between the satellites and the Sub6.
Lo Pass
This potentiometer adjusts the cut-off frequency of the low pass filter on the subwoofer channel, thus setting the upper frequency
range to be reproduced by the Sub6. The goal is to achieve the smoothest frequency response of the whole system: sub +
satellites.
Polarity
This switch inverts the signal polarity on the subwoofer channel (ie 180° phase shift).
Phase
This potentiomer provides some fine ajustment of the phase on the subwoofer channel. Combined with the polarity switch it
can be used to compensate for the spacing between the sub and the main speakers, so to get a coherent soundfield through a
proper time alignment of the different sources.
2.1 Bypass
This input allows for plugging in a control footswitch (not supplied) via a ¼” jack connector.
Turning it active will :
- mute the subwoofer channel
- defeat the high pass filters in the satellites signal paths. The satellites will then be fed with full range signals.
This facility allows for instantaneous comparison between the 2.1 configuration (with sub) and the traditional stereo setup
(without sub) with the same system.
Power indicator
Power "LED" indicator