Boss Audio Systems B12ES, User Manual

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• Using the supplied high-level input wire harness, fasten the black wire to the metal frame of your vehicle
(for signal noise prevention), and connect the other four colored wires to speaker output wires of your head
unit. Make sure to observe speaker polarity.
• Make sure the speaker wires are securely connected and properly insulated. Run the wires under the
vehicle mats for wire protection.
Power Connection
Important! The power wire must be connected to the battery through a fuse (not included).
To the remote output wire
of your head unit
To metal frame
of your vehicle
1
2
Fuse
(not included)
12V
Battery
3
1.
Using an 8 gauge (or heavier) wire, connect the terminal on the subwoofer to the metal frame of your
vehicle. Keep the ground wire less than 39” (100 cm) in length.
Scrape away any paint, rust or dirt from the ground point to provide a clean contact. Fasten the ground wire
on the ground point with a screw or bolt.
2.
Using a 16 gauge (or heavier) wire, connect the REM terminal on the subwoofer to the remote output wire
of your head unit.
The REM terminal connection is used for power control. The subwoofer automatically turns on or off every
time the connected head unit is turned on or off.
If high-level input connection is made, you do not need to make the REM terminal connection. High-level
input connection auto detects DC voltage to activate on/off control.
If your head unit does not have the remote output wire, connect the
REM terminal on the subwoofer to the
ignition switch wire of your vehicle for power on/off control. In this case, make sure your head unit is also
turned on or off with the operation of the ignition switch to avoid noise occurrence.
3.
Using an 8 gauge (or heavier) wire, connect the terminal on the subwoofer to the positive terminal of the
12V vehicle battery through a correct fuse (not included). Keep the fuse within 18” (45 cm) of the vehicle
battery. It is important to connect the power supply through a fuse for protection of short circuits.