8
SETTING GAIN CONTROLS
Each channel pair on the ZX460 is equipped with a variable gain control. The gain control
is provided for level matching purposes; it does not give the amplifier any more power by
turning it up – its purpose is to adjust the sensitivity of the amplifier in relation to the
output level provided by the source.
Start with the amp gain set to minimum by turning the control counter-clockwise.
Turn the source level up until distortion is barely audible – this will be at about 75-80%
of full volume. Raise the amplifier gain until distortion is just audible. The gain is now set
correctly. Check the level with CD/tape and tuner to make sure the adjustment is correct
for all sources.
AMP 1 OUTPUT
AMP 2 OUTPUT
AMP 2
GAIN
AMP 1
GAIN
OUTPUT
RIGHT
LEFT
AMP 1
INPUT
AMP 2
INPUT
1R
+
1R-
1L
+
1L-
2L
+
2L- 2R
+
2R-
AMP 2 OUTPUT
GAIN
OUTPUT
RIGHT
LEFT
INPUT
2L
+
2L- 2R
+
2R-
+
–
+
–
+
+
–
–
RIGHT REAR
SPEAKER
LEFT REAR
SPEAKER
RIGHT FRONT
SPEAKER
FRONT
REAR
LEFT FRONT
SPEAKER
SOURCE
Full Range Speakers
(1
Ω
Minimum)
Full Range Speakers
(1
Ω
Minimum)
+
–
ZRX
HIGHPASS
MODULE
KICKER Subwoofer
(2
Ω
Minimum)
ZRX
LOWPASS
MODULE
BI AMP USING EXTERNAL SUB AMP AND ZRX MODULES
