Cambridge SoundWorks Newton II Series User Manual page 12

Adjusting For Best Performance
We recommend you adjust the P205 according to the
following sequence:
1. Set the
LOW PASS
control.
2.
Set the
LEVEL
control by ear
3.
Set the
PHASE
switch by ear.
4.
Set the
-3dB
switch by ear.
5.
Reset the
volume
control (if necessary).
Adjustment:
1. Adjust the
LOWPASS
control according to the Low
Pass Control Settings Table on the opposite page
2.
Set the subwoofer's
LEVEL
Use some of your
favorite program material (video or audio). Adjust
the output level until you are happy with the overall
bass balance.
3. PHASE
control adjustment: Play some program
material with constant, regular bass (like a kick
drum beat). Switch
PHASE
in and out and listen for
an increase in output. The output difference you
hear could be anything from negligible to signifi¬
cant. However large the difference, leave this con¬
trol set where it has the maximum effect.
If you do not hear any difference in the bass output,
leave the
PHASE
switch in the *0" (out) position.
4.
If you find the increase in output contributed by the
phase adjustment is more than you care for, reduce
the volume control setting to bring the subwoofer
output back in balance.
Congratulations!
You have now adjusted the sub¬
woofer to blend well with your main speakers.
5. The -3dB switch:
For recordings with deep bass
content, setting the
-3dB switch
to 25 Hz will pro¬
duce highly accurate and room-shaking results as it
reveals near-infrasonic signals. There are only two
main reasons to set this control above 25 Hz - the
very deep bass bothers people in adjoining rooms
or the overall output level isn't as strong as you
would like.
12