Cambridge SoundWorks MegaTheater AVS500 User Manual - page 21
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If you are using a 2-channel, or 2.1 system, select
DOWNMIX, and choose the STEREO or VSS set-
tings to your preference. VSS is a Virtual Surround
Sound processor which simulates a surround
sound effect from two main speakers.
•
If you are not using a BassCube 851 or equivalent
that provides its own Bass Management, select
SUB WOOFER and ON.
•
If you do not have a center channel speaker, select
CENTER and OFF.
•
If your center speaker is closer to you than your
main (left and right) speakers, select CENTER DIS-
TANCE and select the closest measurement that
equates to how much closer the center speaker is
than the main ones.
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If your surround speakers are much closer to the
listening position than your main speakers, choose
REAR DISTANCE then select the closest dimension
to the average difference between the listening
position and the surround speakers. For example, if
your rear speakers are 6 ft from the listening posi-
tion and the front speakers are 9 ft, choose 3 ft as
your rear distance setting.
Balance Channel Levels
For precise surround imaging, all 5 speakers in a 5.1
system should play at equal volume levels. Even if all
5 high-range speakers are identical, some may be fur-
ther away from the listening position than others, or be
influenced by their surroundings. This difference will
alter the level you hear from each speaker at the listen-
ing position. The AVS500 features a test tone to help
calibrate the levels. You can adjust channel balance by
ear, or you may use an inexpensive SPL meter such as
Radio Shack #330-2050 for more precise adjustment.
1. Select TEST TONE, then select ON. A short burst of
pink noise will be sent to each channel in turn.
Increase the volume enough to hear the tone clear-
ly. Determine if all channels play at an equal vol-
ume when you are seated in the primary listening
position. Make a note of which channels may need
to be increased or decreased. Avoid changing the
main L and R channel signals.
2. The Number keys on the remote correspond to the
pictures on the speaker diagram shown on the
screen.
1 – Left Front
2 – Center
3 – Right Front
4 – Subwoofer
7 – Left surround
9 – Right Surround
.
Select the number of the speaker that requires
adjustment, and use the VOL+ and VOL – keys to
adjust the volume to the same level as the L and R
main speakers. The VFD will show the adjustment
level for the channel. The channel being adjusted
will hold for 5-seconds to give you time to decide if
further adjustment is necessary. After 5 seconds,
you may choose another channel and repeat the
process.
You are now finished with the Basic Setup. Press the
SETUP button to exit and return to normal operation.