G.
Bass Remote Input Jack
Use to plug in the optional remote bass controller.
H.
Optional Bass Remote Controller
This remote can be mounted in the front of the car and will give you the ability to raise the bass boost of the amplifier
remotely in the range of 0 to +12 dB.
They can be purchased separately from the FLI website www.fliaudio.co.uk, see back page for more details.
I.
Speaker Terminal Output
For connection to the speakers. See application section for wiring examples.
J
. Fuse
Please ensure the following fuse rating is used when replacing fuses:
FLI Loaded 450s – 20 amp
K.
Power Connections
Power connections. See Connections section for details on correct connections.
Set Up Section
To correctly set the gain control of the amplifier to match that of the source (headunit) use the following setup routine:
Turn the gain control to minimum on the amplifier.
Ensure the bass boost is set to 0 dB.
On the headunit set all crossovers to flat and both bass and treble to zero.
Turn up the source (headunit) to approx 3/4 volume.
Very slowly turn up the gain on the amplifier until distortion can be heard in any of the speakers or until the volume reaches
an uncomfortable listening level when this is reached turn down the gain control slightly.
The gain control is now set.
The setting of the crossover will depend on what kind of speaker you are installing.
For a subwoofer it is recommended that the crossover is set to Low Pass and the frequency is set to match that of the
speakers specifications.
For a pair of full range speakers it is recommend that the crossover is set to Flat. The two frequency controls will then have
no effect on the amplifiers output and the speaker will receive a full range signal.
For a pair of speakers with a passive crossover it is recommended that the crossover is set to High Pass and the frequency
is set to match that of the speakers specifications.
Note:
By using the crossovers correctly you will not only lengthen the life of your speakers but will also get better performance from
them. To optimise your setup seek the advise of a professional installation engineer or visit your local FLI audio dealer.
D
. Cross Over Select Switch
Used to select between Flat, High Pass Filter and Low Pass Filter.
The high pass filter will only allow high frequency information to be passed to the speaker(s) while the low pass filter will only
allow low frequency information to be sent.
If no filter needs to be applied then place the switch in the flat position.
E
. Cross Over Frequency Control
High pass frequency control. The frequency ranges from 50hz to 500 Hz.
F.
Bass Boost Control
To provide up to an extra +12 dB of bass boost at 45 Hz. Use this boost to increase bass output from the amplifier.
L.
Power Protect Light
When the amplifier is operating correctly the light will illuminate constant ‘green’. When the amplifier is in power protecttion
mode the light will illuminate ‘red’.
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