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5
MULTIPLE AMPLIFIERS IN PARALLEL CASCADE MODE:
TWO or more FPD 900.1 amplifiers are required.
• Use this mode when you have several speakers that will use the same crossover and loudness setting and will
have one amplifier on each speaker.
• One example is a dual voice coil subwoofer and you use one amplifier on each voice coil.
• A second example is you have several subwoofers and will use one amplifier on each subwoofer.
Amplifier #1 will have “MASTER” switch selected.
Amplifier #2,3,4.... will have “DIRECT” switch selected.
Crossover and level controls will only function on amplifier #1.
By selecting “DIRECT” on amplifier #2,3,4.... all crossover and level controls are bypassed and the LEFT input channel
must be used.
Master Amplifier #1 will receive the source signal on left and right channel.
Master Amplifier #1 RCA “out +” will connect to
direct amplifier #2,3,4.... RCA “L IN”.
The LEFT input channel must be used.
One speaker + & - will connect to one Amplifier’s + & -.
RADIO
REMOTE SUB CONTROL
LP 20Hz50Hz MASTER
DIRECT
x1
DUAL VOICE COIL
SUBWOOFER
A4 (2 AMPS PARALLEL)
+
–
+
–
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