E250P
Phase Control
The Phase Control determinesbass output at the listeningIf at some time in the future
whether the subwooferOs pis-position.you happen to rearrange your
ton-like action moves in andlistening room and move your
out in phase with the mainRemember, every system,speakers, you should experi-
room and listener is different.
speakers or opposite theThere are no right or wrongment with the phase switch in
main speakers. There is nosettings; this switch offers theboth positions, and leave it in
correct or incorrect setting.added flexibility to adjust yourthe position that maximizes
Proper phase adjustmentsubwoofer for optimum per-bass performance.
depends on several variablesformance for your specific
such as subwoofer placement
and listener position. Adjustlistening conditions without
having to move your speakers.
the phase switch to maximize
TROUBLESHOOTING
If you used the high-levelIf there is low (or no) bassIf you used the line-level
(speaker) inputs and there output:inputs and there is no sound
is no sound from any of thefrom the subwoofer:
speakers:Y Make sure the connections
to the left and right OSpeakerY Check that the receiver/
Y Check that the receiver/Inputs� have the correct amplifier is on and a source is
amplifier is on and a source polarity (+ and �).playing.
is playing.
Y Make sure that the sub-Y Check that the powered
Y Check that the powered woofer is plugged into ansubwoofer is plugged into an
subwoofer is plugged into active electrical outlet andactive electrical outlet and is
an active electrical outlet switched on.switched on.
and is switched on.
Y Adjust the crossover point.Y Check all wires and
Y Check all wires and connec-Y Flip the Phase Control switchconnections between the
tions between the receiver/to the opposite position.receiver/amplifier and the
amplifier and the speakers.subwoofer. Make sure all
Make sure all wires are con-Y If you are using a Dolbywires are connected. Make
nected. Make sure none ofDigital/DTS receiver or sure none of the wires are
the speaker wires are frayed,processor, make sure that thefrayed, cut or punctured, or
subwoofer adjustments on
cut or punctured, or touchingthe receiver/processor are touching each other.
each other, except for theset up correctly.Y Review proper operation of
wires for the front left andyour receiver/amplifier.
right speakers, which may beY Slowly turn the Level Control
joined with the wires for theclockwise until you begin toY Slowly turn the Level
subwoofer at the receiver/hear the desired amount ofControl clockwise until you
begin to hear the desired
amplifier end only, if you arebass.amount of bass.
using the speaker-level
connections as described Y Make sure that you have
on page 4.configured your receiver/
processor so that the sub-
Y Review proper operation woofer/LFE output is on.
of your receiver/amplifier.
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ACEC
