SUBSONIC FILTER CUT-OFF FREQUENCY MODIFICATION
Replace FS1, FS2, FS3, FS4 resistors according to
the values in the setting panel table.
Remark: Cut the new resistors
rheophores according to the
size in the picture.
Procedure:
VCA-VCA1D MODULES INSERTION
LRx 6.SR can accept one of the three optional kits which allow the subwoofer volume remote control:
VCR01K, VCRAK or VCRDK.
These kits have a specific module, VCA or VCA1D, to insert into the amplifier through the setting
panel.
Installation:
1 - Remove BYP12 bridge.
2 - Insert VCA/VCA1D module.
- Insertion key. It prevents the module from
being inserted in the wrong way.
Subsonic filter is pre-adjusted at 20 Hz. In order to modify this value, please act according to what
follows.
SETTING PANEL
10
It permits to reach the resistors to set subsonic filter cut-off frequency, the switch which activates
subsonic filter (SUBSONIC) and to insert VCA modules for the subwoofer volume remote control.
SUBSONIC FILTER ACTIVATION
Subsonic filter is activated through SUBSONIC switch under the setting panel.
• SUBSONIC switch permits to eliminate subsonic frequencies;
these sounds cannot be heard by human ears but cause useless
and damaging stress to amplifier and speakers. When it is on ON,
frequencies below the chosen cut-off one are eliminated.
Subsonic filter cut-off frequency can be adjusted through 4 Hz
steps; this occurs by replacing the special resistors located into a
socket which can be reached through the setting panel in the
amplifier bottom. The amplifier is given with 20 Hz cut-off
frequency.
2 - Once operations have
been carried out, please
close the setting panel.
1 - Remove the setting panel in the
amplifier bottom in order to carry out
operations.
FUNCTIONS
Setting panel
