Kicker SX900.4 - Manual (Page 11)

11
SX .4 Series Amplifiers
Installa
tion
USING THE SIGNAL OUTPUT JACKS (PAST)
The Output (Pre Amp Signal Transfer) RCA jacks allow you to
send the incoming signal from the AMP 1 RCA input jacks on one
Kicker SX.4 series amplifier to another amplifier or processor
without the need for Y cables. The signal from the PAST jacks is
identical to the signal fed to the amplifier via its AMP 1 RCA input
jacks and is not affected by any of the amplifier’s built-in digital
signal processing.
Most head units with high voltage outputs should be capable of
driving up to ten amplifiers in a chain.
If only using one RCA cable to feed signal into your SX.4
series amplifier, be sure to use the AMP 1 input on the amplifier.
The AMP 1 input will feed signal to AMP 2 and the PAST RCA
jacks.
If your source unit has front and rear RCA outputs and you
want to enable fading, simply use an additional cable to connect
AMP 2 to your source unit.
SOURCE UNIT
To Next Amplifier or Processor
AMP 1 RCA CABLE (FRONT)
AMP 2 RCA CABLE (REAR)