crescendo SYMPHONY S4 Owner's Manual - Page 3
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8. Using RCA interconnect cables, connect all line inputs per the wiring diagrams which follow.
If possible, keep RCA cables away from the 12V power and ground wire.
9. Set the controls as described on following pages.
12V ( POWER CONNECTION )
Before mounting amplifiers, disconnect the negative ( - ) cable from your grounded battery to protect
any accidential damage to your awesome amplifiers and audio system.
amplifiers are designed to use 4 gauge power and ground connection.
SYMPHONY
Connect the power cables to power terminal + 12V.
amplifiers are not equipped with fuses because they do not like to be bossed around.
SYMPHONY
External fuses should be used.
Connect one end of fuse holder to the power cable going into the amplifiers and the other end of fuse
holder to positive battery.
This fuse location will protect the system and the vehicle against the possibility of a short circuit in the power
cable.
Be sure to use fuses and fuse holder adequate for the application.
REM ( REMOTE )
Run a remote turn on cable ( at least 16 gauge ) from the switched + 12V source .
This may be a toggle switch, a relay, your source unit's remote trigger cables, or power antenna trigger cable.
Connect the remote turn on cable to the REM ( remote ) terminal.
GND ( GROUND )
Locate a secure grounding connection as close to amplifier as possible.
Make sure the location is clean and provides a direct electrical connection to the frame of the vehicle.
The ground needs to have as low of a resistance as possible.
Connect one end of a short piece of the same size cable as the power cable to the grounding point or
to one of your batteries or battery bank.
Run the other end of 4 gauge cable to the mounting location of the amplifiers for connection to the
amplifiers ground terminals and connect the ground cable to the GND ( ground terminal ).
+12V SOURCE
Ground
Remote Turn on
EXTERNAL FUSE RATE
BATTERY
S1-v2 : 150A
S1 Plus : 300A
S2 : 50A
S4 : 60A
S6 : 130A