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Lowpass Crossover Controls
To use lowpass crossover move LOWPASS switch to righthand position. Lowpass
crossover frequency is adjustable from 50Hz to 350Hz by rotary control. (Moving
switch to left-hand position will bypass crossover functions.)
Lowpass Slope
Select appropriate crossover slope of 12 or 24dB/octave by moving LOWPASS
SLOPE switch.
“Q” Control
The “Q” Control is active when the highpass crossover is engaged and is cen-
tered on the selected crossover point. The range of operation is 0.7–1.2.
Subwoofer Level Control Port
SUBWOOFER LEVEL switch should be set to “OFF” when control circuit is not
installed, (see optional Subwoofer Level Control owners manual).
Status LED Indicators
GREEN indicates the normal operating condition; the amplifier is “ON.” GREEN
and RED together are normal when the amplifier is first turned “ON”; RED will
turn off after a few seconds. When both GREEN and RED remain on, the ampli-
fier is in thermal shutdown condition. RED only indicates a fault condition, “SAFE.”
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Control Functions (cont.)
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LOWPASS
OFF
ON
50
350
Hz
200
(tuned crossover frequency)
0dB
+1.6dB
-3dB
t
1.2.95.707
dB
Q
LOWPASS SLOPE
12dB
24dB
MONO
12dB
ST
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