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To bridge the DB4.5 please use the following speaker terminals:
FR+ with FL-
and
RR+ with RL-
Once your power cable, RCA and remote lead are all securely running through the car to
where you want the amp and the earth wire is fastened securely, somewhere close to the
amp, you can fit the amplifier. If applicable don't forget to fit the amplifier remote control
wire and any speaker wires running forwards at the same time.
The amp should be mounted on a solid surface such as a boot floor. Wherever you do
choose to mount the amp, it needs sufficient ventilation; 2-3" around will be enough. We do
not recommend mounting an amplifier on a bass box as the vibrations can cause damage
to the internals of the amplifier over time.
You need to ensure that the load you subject your amplifier to is within specification and of
a sensible nature and that you have the appropriate cooling where applicable. It is your
responsibility to ensure the amp is kept at a sensible working temperature. Vertical
mounting or "hot boxing" can cause severe damage to the amplifier. Also take care
mounting an amp onto a board that has been covered in carpet. This can restrict airflow
under the amplifier, limiting the amount of convection cooling that can be achieved and
insulating the amplifier underneath which can build up heat inside the amp. For
installations that are space compromised the installer can add small PC style fans to
circulate air.
When choosing a speaker impedance remember that bridging a pair of output halves the
impedance – So a 4 ohm woofer bridged the amp sees 2 ohms per side. Thus to run a 2
ohm load on a bridged amplifier it must be capable of seeing only 1 ohm per side.
Also please remember that it is bad practice to run only "half" of a 4 channel amplifier and
leave the other "half" not connected to anything. This can cause the amplifier to fail on the
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