Cambridge SoundWorks P500 Subwoofer - Manual (Page 5)

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1. low-pass:
Even though a subwoofer only produces “bass
notes”, the upper end of its range should be tailored
to blend well with your main speakers. The sub-
woofer should not produce any bass your main
speakers can produce. The low-pass control sets
this limit. The lowest setting (50 Hz) should be used
with large main speakers. Its middle settings should
be used with small floorstanding speakers or large
bookshelf speakers. Its highest setting should be
used with small speakers (see table on page 14).
2. On/Standby/Limit Indicator:
This indicator glows amber when the subwoofer is
in Standby. The subwoofer uses very little power in
this mode. It turns on rapidly whenever the main
system is used. This indicator glows green while the
subwoofer is On and operating. This indicator blinks
red whenever the subwoofer reaches its full output
(1000 watts for the P1000, 500 watts for the P500).
3. phase:
The phase control compensates for placement dif-
ferences between the main speakers, the subwoofer
and your listening position. Adjusting this control
affects the relatively narrow range of notes where
the main speakers and the subwoofer “overlap”.
Adjust it for maximum output in this narrow range (not
for “best sound”). The affect this control has can be
subtle. It’s easiest to adjust when percussion is playing
a repetitive pattern.
4. volume:
This control sets the overall output level of the sub-
woofer. Adjust it with the remote control for the best
overall blend with your main speakers, after you have
set the other controls.
5. equalizer level and equalizer frequency:
Your listening room’s shape and construction (and
where you listen within it) have an unpredictable affect
on deep bass. These two controls adjust deep bass.
equalizer frequency adjusts how deep into the bass
the subwoofer will respond. The 20 Hz setting indi-
cates the subwoofer is flat down to that frequency.
equalizer level adjusts the output centered around the
equalizer frequency setting.
These controls let you discover the strong and deep
sonic events in your favorite program material, part of
the fun of having a great powered subwoofer.
The lower you set the equalizer frequency and the higher
you set the equalizer level, the more amplifier power you
devote to producing the deepest bass.
This, in turn, can limit the maximum overall output of
your subwoofer. If you want maximum output, setting
the equalizer frequency at or above 30 Hz
can give it to you.
OPERATING CONTROLS
70
low-pass
phase
volume
equaliz er
frequency
equaliz er
level
50
0
0
20
-6
40
0
100
low-pass
100
70
50 150
130
equalizer
frequency
40
20 60
phase
0 180
equalizer
level
0
-6 +6
volume
0 11