Film-Tech SA10 Installation Manual page 55

5-6 / Alignment with CP55
.4
.05 .2
.1
.4
.05 .2
.1
Cat. No. 242
Ls -- GND Jumper
Right Surround
Back Left
2.0 8.0
1.6 6.3 12.5
.8 3.15
2.0 8.0
1.6 6.3 12.5
.8 3.15
Back Right
Adjust the treble controls to produce a flat high-
frequency response up to 2 kHz, followed by a 3 dB
per octave roll-off above 2 kHz.
The right-hand control sets the frequency range, and
dB
the left-hand control sets the level of boost or cut.
+10
+5
0
–5
–10
kHz
Fine-tune the equalization by adjusting the seven mid-
band controls.
dB
+10
Note: All controls interact with each other. Do not start at the
low-frequency end and work your way to the high-frequency end.
+5
Start at the center frequency and attempt to achieve results with
cut rather than boost. As each control is adjusted, the level of the
0
adjacent band is affected. You may find that a cut at one
frequency will require a slight boost at adjacent frequencies.
–5
The desired setting is a flat response up to 2 kHz,
–10
falling at 3 dB per octave to 8 kHz (1 dB per third-
kHz
octave band).
Use a jumper wire to connect the Ls (white) test point
on the Cat. No. 242 to a ground (black) test point.
This will mute the Ls pink noise.
Turn on the Right Surround power amp.
Repeat the previous equalization adjustments for the
Right Surround channel.
Turn on the Back Surround Left and Back
surround Right power amps.
Right Surround Eq
Back Surround Eq