Rockville DB Marine Series, Owner'S Manual

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The remote turn on connection is located on the barrier strip next to the power and ground connections. This connection is responsible for turning the amplifier on and off with the rest
of the system. A smaller gauge wire can be used to make this connection to your radio’s power antenna lead. Should your system not have any turn on leads, you can wire the remote
terminal to an accessory lead, which turns the amplifier on with your boat’s ignition.
dBM12 amplifer is supplied with built-in fuses. Never replace the built in or supplied external fuse with one of a larger value.
In order to protect the battery and electrical systems of your boat, construct a red wiring harness with a fuse and fuse holder located within 18˝ of the battery. This fused red power wire
should be attached to the amplifier power terminal marked
+12V . The wire harness should be made of red primary cable at least 8 gauge. The harness should terminate in a large ring
terminal for connection directly to the positive terminal of the secondary battery. An optional second fuse can be installed closer to the amplifier for additional safety to the amplifier itself.
A second black color wire of equal gauge should be used as a ground connection to the negative terminal of the secondary battery. Attach the black ground wire to the amplifier screw
terminal marked
GND . Keep ground and power cables as short as possible.
Connections can work loose due to vehicle vibrations. We recommend tightening all power and ground connections in the system wiring as well as on the amplifier terminals periodically,
at least once every 2 months.
Wiring
BATTERY
FUSE
REMOTE
TURN ON
Terminal of head unit. Do not connect
when using High Level Inputs.