Features, Controls, Ac Power; Sub Volume Control; Sub Cut-Off Frequency Control; Phase Control (Figure 2) - PSB Speakers PSB SubSeries 500 Guide D'utilisation

VII. Features, Controls, AC Power
A. SUB VOLUME CONTROL
Adjusts the output level of the PSB subwoofer only: This is
not intended as a day-to-day volume control. See "IX.
Setup Calibration"
The PSB subwoofer includes designed-in dynamic-range
protection: it is virtually impossible to overdrive the
subwoofer, regardless of volume setting or the demands
of the program material.
Where even higher levels of low frequencies are required,
a second PSB subwoofer can provide a significant gain in
total bass levels.
B. SUB CUT-OFF FREQUENCY CONTROL
Adjusts the high-frequency roll-off of signals sent to the
subwoofer. Continuously variable from 50Hz to 150Hz for
precise matching of subwoofer bass reproduction with the
main (left and right) stereo speakers. See "IX. Setup
Calibration"
C. PHASE CONTROL
Adjusts the subwoofer output phase between 0° and 360° to
compensate for the low to mid bass acoustic effects of different
placement locations and listening rooms.
See "IX. Setup Calibration".
D. ON INDICATOR LIGHT
(Located on the front on the Subwoofer directly below the
woofer) With both the 120 and 230 volt versions, the
subwoofer is initially in stand-by mode awaiting the presence of
an audio signal. The indicator is red in the standby mode. When
the subwoofer receives an audio signal the On indicator colour
will change to green. At the end of the audio signal the
subwoofer will stay on for approximately 15 minutes.
E. AC POWER SOCKET
Supplies AC power to the PSB subwoofer. Connect the supplied
power cord to the AC power socket. Plug the power cord into
any standard wall outlet. With 230 volt versions, in some
countries it may be necessary to replace the power cord to
meet the standards in use locally. The same receptacle as the
rest of the system or another on the same electrical circuit
should be used to avoid ground hum.
The PSB subwoofer has its own self-contained amplifier and
thus requires AC power (keep this in mind when selecting a
location). You may plug the power cord into any standard wall
outlet and leave the connection in the wall as the PSB
subwoofer draws extremely little current when idle. You may
want to unplug your PSB subwoofer when it will not be used for
an extended period such as a vacation.
12
Figure 1
(located on the front
of the subwoofer)