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In order to optimise the overlap of frequency ranges reproduced by the subwoofer and the coaxial or
2-way kits, we advise you to adjust the frequency of the HI PASS filter or that of the LO PASS with an RTA
(real-time analyser). Another possibility is to refer to the packaging of your kit or its user’s manual. In the case
of a Focal kit, the measurements supplied as frequency response take into account the installation of the kit
inside a vehicle.
Tuning the FP 1.800 amplifier for SPL contests:
NOTE:
The following adjustments do not correspond to a “musical” use of the amplifier. What is sought here is the
maximum sound pressure level without damaging the subwoofer/s.
The use of the FP 1.800 amplifier during SPL contests is an additional asset. The various adjustments available
enable you to optimize the amplification for use in SPL contests. Tune the SUBSONIC filter to 50Hz. Position the
BASS BOOST level at 12dB, then tune the BASS BOOST frequency to 60Hz. Adjust the LO PASS to 80Hz
Conditions of the Guarantee
In the event of a problem, firstly contact your Focal distributor.
The guarantee for France of all Focal material is for 1 year. In the event of faulty material, this should be sent
at your cost in its original packaging to your distributor, who will analyse the equipment and determine the
nature of the problem. If it is under guarantee, the equipment will be returned to you or replaced “post-paid”.
Otherwise a quote for the repair job will be given to you. The guarantee does not cover damages caused by
improper use of improper connection of the amplifier.
Outside France, Focal equipment is covered by a guarantee with local conditions which are set out locally by
the official Focal distributor in each country, in accordance with local legislation.
Tuning Tips
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