Cambridge SoundWorks NEWTON P300HD User Manual page 8

ADJUSTMENTS
With a surround processor:
When using the subwoofer output of a surround processor,
set the P300 HD's frequency control fully clockwise. Try the
Phase switch in both positions and leave it in the position
that yields the most bass. If there is no audible difference
between the two positions in your room, leave the switch in
the 0-degree (out) position.
Your surround processor has a variety of adjustments to
optimize the sound based on the speakers' capabilities and
placement. These adjustments vary by processor, so refer to
your processor's manual for instructions specific to your
equipment. Set your main, center, and surround settings to
"SMALL", with subwoofer "ON". Set the volume control on
top of the P300 HD to its centered position and use the
processor's level adjustments to balance the system. You
may then use the control on the P300 HD to quickly fine-
tune the subwoofer level for different program material.
With no surround processor:
When using a source component that does not have a dedi-
cated subwoofer output you must use the crossover fre-
quency adjustment of the P300 HD to match the low fre-
quency capability of your main speakers. Determine the final
settings by ear. Refer to the specifications of your main
speakers to determine the best setting to use as a starting
point for this control. You should start from the low frequen-
cy limit of your main speakers. For most small satellite
speakers typical of home theater systems, this will be
between 65 – 100Hz. If you are using the MC600 HD as
your main speakers, set the crossover to 80Hz. Room char-
acteristics are very strong in this frequency range, so don't
be surprised if the final settings you like are far from the
starting point. Try the Phase switch in both positions and
leave it in the position that yields the most bass. If there is
no audible difference between the two positions in your
room, leave the switch in the 0-degree (out) position. Use
the volume control on top of the P300HD balance the sys-
tem. Listen to a variety of program material with good bass
to fine-tune the various settings. In a properly set up system
the bass should be smooth and clear, but from the listening
position it should sound as if it is coming from the main
speakers, not from a separate subwoofer. If is is not the
case, your subwoofer may be too loud, or the crossover fre-
quency may be set too high.
8