Bg Z-1 Owner's Manual And Setup Procedures page 10

Subwoofer Setup
Adjustments
4. On/Off power switch. Once the Z-Sub is po-
sitioned in the room and the proper cables are
installed, the On/Off switch should be engaged in
the on position for initial power up. The LED turn-
ing red indicates the unit is powered on.
5. Auto/On switch. In the Auto position, the ampli-
fier is in stand-by mode and turns on automati-
cally when the signal arrives from the amplifier
or receiver. It turns off after 10 minutes when
a signal is not present. In the On position, the
amplifier is always on regardless of the presence
of a signal. The Auto position is recommended for
normal operation.
6. Phase switch. This switch is specifically de-
signed to eliminate phase discrepancies between
the Z-Sub as well as the primary LCR loudspeak-
er's phase. The phase relationship depends
on the relative distance between the sub and
loudspeakers. If your sub is located within 5 feet
(1.5m) from either loudspeaker or between them,
try the switch in the 0-degree position. If your
sub is located further away than recommended,
experiment with both switch positions and choose
the position where you experience fuller base.
7. Low frequency cut-off control. This allows
adjustment of the cut-off frequency (within 50-
150Hz) of the subwoofer's low pass crossover.
When using the sub for two-channel stereo, the
knob should be adjusted to match the primary
loudspeaker' low frequency roll-off to create a
seamless integration between them. For home
theater, set the subwoofer at 150Hz while setting
your processor/receiver to crossover the system
at 80Hz or 100Hz.
8. Volume control. This control adjusts the loud-
ness level of the subwoofer and matches it with
the loudness level of the loudspeakers. Adjust
the level to achieve a balanced sound between
the subwoofer and the loudspeakers. Your room,
source material and your preferences will deter-
mine this.
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