User`s manual

B-Chain Alignment Procedures
Notes
5-7
5.2 Setting Room Equalization
Open the CP45 front panel.
With a sound pressure level meter located at the position in the theatre used
for step 6, adjust the center channel level control on the Cat. No. 510 card
until the channel produces a reading of 75-80 dBC. (After room equalization
for all channels is adjusted, the sound pressure level will be set to 85 dBC.)
The pink noise should be at least 20 dB above the background noise level of
the theatre. If a level of 75-80 dBC cannot be obtained, adjust the gain of the
power amplifiers and try again.
Repeat steps 11 and 12 for the left and right channels.