January 12, 2011, 6:33 pm
Questions is - with the factory head unit where do you connect the sub to? There's no sub out is there?
On the basis that freeing the existing speakers of dealing with the bass should improve sound quality - I've been pondering how to get around this.
Option a) is just to connect the sub the rear speakers with a suitable resitor divider and inductor (to make a variable low pass filter) then set the bass setting to flat on the HU and use the sub to boost the bass. Option
is similar but with a 22uF capacitor is line with the existing speakers to cut the bass on them and turn the sub up more to make the sub to all the bass work. This should work better as it will free up the main speakers from all the bass, not just part of it.