9
CONTROLS
Auto – On/Off:
Eliminates the need for a manually operated power switch. Turns the subwoofer on
when it senses an input signal. If no input signal is sensed after a period of time, the
subwoofer will enter standby mode, drawing a very small amount of power. Standby
mode allows the subwoofer to switch on quickly when an input signal is present.
Note: while your subwoofer is in standby mode, the rear panel may be warm to the
touch. This is a normal part of the subwoofer operation.
Trigger – On/Off:
Allows the subwoofer’s power on/off to be controlled by components that have trigger
outputs (Preamp/Processor or A/V Receiver, etc.).
Cut-Off:
Calances the subwoofer’s output level with the other speakers in your system. Once
set, to make on-the-fly changes for particular program material or personal taste,
use your Processor or A/V Receiver’s subwoofer level control.
Cut-Off:
Controls the subwoofer’s upper-frequency cut-off. This can be set to match the low-
frequency roll-off characteristics of your system’s speakers. For example: If your
speakers play to approximately 80 Hz, you can set the subwoofer cut-off frequency to
approximately 80 Hz. If you are using an external subwoofer cut-off control, setting
this to maximum effectively bypasses the subwoofer’s built-in cut-off control.
Phase:
Depending on where the subwoofer is placed in your room, there may be bass
frequency cancellation. This can occur because your subwoofer and front speakers
are out-of-phase—they work against each other through their frequency overlap
region. Bass is then reduced and may even sound disjointed. This control accurately
synchronizes your subwoofer and front speakers through their bass frequency overlap
region.
Sweep:
Press and hold this button for 2 seconds to engage a tone sweep (120Hz – 20Hz).
Press the button a second time, the audible tone will pause. A third press will stop
the tone sweep. This feature is useful for locating areas in your listening room where
troublesome noise rattles or resonance may occur. The tone sweep feature may also
prove useful when setting phase, crossover and volume on the subwoofer.
PBK
–
On/Off:
Toggle between before (off) and after PBK measurements (on) have been taken. See
PBK manual, packed with the PBK, for instructions.