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Mono Subwoofer Operation
When the amplifier is configured for mono operation, use the speaker output terminals marked for
mono use.
WARNING! Subwoofer impedance must not fall below 2 ohms when in MONO mode.
Installation—Fuses and Wiring (cont.)
1) Music
The material chosen for head unit/amplifier system setup must be both clear in recording quality and dynam-
ic in amplitude. Many audiophile “test” discs have musical tracks with both of these characteristics and should
be used.
2) Input Sensitivity Control
Turn control all the way counterclockwise (minimum position). In this position,
the amplifier will be less sensitive to the input signal from the head unit.
5
0.2
INPUT SENSITIVITY 2.6
Setup Tuning—Full-range Speakers
HIGHPASS
OFF ON
20
350
Hz
185
LOWPASS
OFF
ON
50
350
Hz
200
Highpass Crossover Control
Lowpass Crossover Control
3) Highpass & Lowpass Crossover Controls
Crossovers should be turned “OFF” during this phase of setup. Move the HIGHPASS and LOWPASS
switches to the “OFF” position—with these settings, full-range signal is sent to the speaker outputs. If bot-
toming is detected from speakers, move HIGHPASS switch to “ON” and slowly rotate clockwise until bot-
toming is eliminated.
2-ohm minimum
SPEAKER OUTPUT
L R
MONO
LOWPASS SLOPE
12dB
24dB
MONO
12dB
ST
Lowpass Slope Control