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Crossover settings
If you have an active crossover elsewhere in your system (such as the head unit) then you
may wish to set the crossover switch on the amp to OFF/FULL RANGE. Otherwise, in most
cases, this must be set to ON and the controls adjusted appropriately.
For subwoofer installation and setup we recommend a LPF of about 100hz initially as an
excellent starting point for most car woofers. Try 80Hz and 120Hz too – you will notice the
sound change. If you are running a 15 inch woofer then you will want to be looking at a
lower crossover frequency (like 80Hz) – if it's an 8 inch driver then you may want to go up
to 120, 150 or even higher.
For other speakers if you are using a woofer, try to keep the HPF the same as the woofer
LPF. If you are using no woofer then a full range setting might be more appropriate. A
typical six inch driver will play from 100Hz and up. A four inch driver around 200Hz and up.
Once your crossover settings are set up, you can move on to the gain or "Level". Before
you do anything else, please ensure that any bass boost controls on the head unit or
amplifier are set to 0 / flat / switched off. We also suggest you turn the bass remote level to
a mid setting to allow adjustment later to taste.
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