BLAM CR20 Manuel - Page 8

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BLAM CR20 Manuel

Power connections

Connect the ground terminal to the closest point on the chassis of the vehicle. Keep this ground wire to less
than 39" (100 cm) in length. Use 8 gauge (or heavier) wire. Connect the remote terminal to the remote output
of head unit using 16 gauge ( or heavier ) wire. Connect an empty fuse holder within 18" (45 cm) of the car
battery, and run 8 gauge (or heavier) cable from this fuse to the amplifier location. Then connect the fuse
holder to the "BATT+".

Low Level Input Wiring

Low-level (RCA) input wiring is preferred for best audio performance. Most trunk or hatchback installations will
require a 15-20 feet RCA cable, while pickup trucks and under-seat installations will require a 6-12 feet RCA
cable. Always use a high quality cable. Connect to remote turn-on terminal on head unit.
NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the
same time!

High Level Input Wiring

The high level input(s) should only be use If the RCA outputs are not present, connect the speaker outputs
from the receiver to the high level input connector of the amplifier. Be sure to observe polarity to avoid audio
phase problems. The ground wire can be connected to the ground of the Head Unit. The AUTO POWER ON
is for high level connexions. The subwoofer turns on automatically when there is a signal on the input.
NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the
same time!
To remote TURN-ON
Power
Terminal on Head
Supply
Unit
7
From Outputs oh
Head Unit