Balance Setup - Classe Audio SSP-25 Owner's Manual

Press "MENU", then press the ">" key twice to display "Main menu – System setup." Select this option by pressing
"ENTER", then press the ">" key to navigate to "System setup – Delay setup."
Press "ENTER" to select this option, the display will change to read "Display setup – Left: 00 ft." You are now able to
begin setting up the sound delay for your theater using the data you developed in the worksheet.
Pressing the ">" key cycles through the six available speakers: Left (front), Center, Right (front), R-Surr(ound), L-
Surr(ound and Sub(woofer). As each speaker appears in the display you may increase or decrease the number of feet
it is closer to the listener by pressing the "/\" and "\/" keys on the remote.
Using the "Difference" numbers you have written down above, set the correct number of feet the speaker is closer.
Double check settings by cycling through the speakers a few times. Remember that the furthest speaker is to be set to
00 (zero), (all speakers equally furthest are set to 00 also).
See table next page for maximum differences available for setup.
The Table below shows the maximum number of feet difference available for each speaker. Remember that the
furthest speaker(s) are set as 00, while the other speakers are set at how many feet closer they are to the listener,
(NOT to the number of feet they are from the listener).
Delay setup Left (front):
Center:
Right (front):
R(ight)-Surr(ou
nd):
L(eft)-Surr(oun
d):
Sub(woofer):
When you are satisfied you have the Speaker Delay set up properly you can exit this portion of the setup
programming. Pressing the "MENU" key on the remote three times will take you out of the setup displays and bring
you back to the main display screen.
5.5.3

BALANCE SETUP

Proper system calibration (i.e., balancing the output of all speakers to compensate for
system and placement variations) is an essential step if you wish to enjoy a movie
soundtrack or other multi-channel sound source as the director, producer, or sound
engineer intended.
"Balancing" a system means adjusting the SSP-25's speaker outputs to compensate for
sound level differences caused by varying amplifier sensitivities, speaker efficiencies, and
speaker placement -- all the possible system variations except those dictated by the
software you are playing.
Although you can calibrate the SSP-25 surprisingly well using your ears alone, we strongly
suggest a sound level meter for even greater accuracy. The Radio Shack meter (catalog #
33-2050) is both inexpensive and reasonably precise. Other sound level meters offering
improved accuracy and flexibility are available. In general, we find meters with digital
readouts less satisfactory for calibration work as the continuous scale of an analog readout
gives a more useful picture of sound level variations.
When using any sound level meter, set it to "Slow" response (to better average continuous
readings), "C" weighing (the "C" scale is more accurate for the type of measurement you
need to do), and adjust the "range" setting to 80 dB.
0 to 8 feet
0 to 8 feet
0 to 8 feet
0 to 15 feet
0 to 15 feet
0 to 8 feet
Some Initial Thoughts on Balance and Calibration
46