CROSSOVER 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. Not in circuit when
using LFE input. See “X. Setup Calibration”
TRIGGER INPUT JACK
The HD Subwoofer can be turned on (brought out of
standby) by an external trigger (turn on) voltage. Connect an
external trigger voltage via a cable terminated with a mono
mini jack of 3mm (1/8”) size. Voltages within the range of 2 to
30 volts, either AC or DC, will work. Do not exceed 30 volts
(DC or RMS AC). For DC voltages the tip should be positive
and the base ground. Either the trigger voltage or detected
music will turn the subwoofer on. It will return to standby
mode one hour after both music and the turn on voltage
cease.
STEREO LOW/LINE LEVEL JACKS
Connect the PSB subwoofer to a separate-component
preamplifier, or to an integrated amplifier or receiver with
preamplifier-out/main-in facilities, at line level. See “IX.
Connecting The Subwoofer to Your Audio System”.
VIII. Features, Controls, AC Power
AMPLIFIER PANEL
The metal provides cooling for the PSB subwoofer’s internal
amplifier by radiating heat produced in normal operation.
Allow air circulation, including at least four inches clearance
from wall or furnishings.
HIGH/SPEAKER LEVEL TERMINALS
Connect the PSB subwoofer to receivers or integrated
amplifiers equipped with speaker outputs only. See “IX.
Connecting The Subwoofer to Your Audio System".
LFE INPUT/OUTPUT JACKS
Allows line level connection to processor or receiver
containing full Bass management. Bypasses the subwoofers
variable crossover. See section “X. Setup Calibration”.
BASS LEVEL
Adjusts the output level of the PSB subwoofer only. See “X.
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.
PHASE CONTROL
Continuously varies the subwoofer output through a full 360
degrees, to give the smoothest transition between the
subwoofer and main loudspeakers. Will compensate for the
low to mid bass acoustic effects of different placement
locations and listening rooms. See “X. Setup Calibration”.
11
ON/STAND-BY INDICATOR LIGHT
An On/stand-by Light Emitting Diode is located on the front of
the cabinet just below the woofer. This is a two color LED with
Red signifying that the unit is powered but in Stand-by mode.
Upon receiving a signal the system will change from Stand-
by to On and the LED color will change to Green. Note that
when first powered up, the subwoofer will come into full
operation with the Led glowing Green. If no signal is received
for an hour the subwoofer will set itself in stand-by mode
(Red) awaiting the presence of an audio signal.
