Midbass lacking!! Subwoofer LPF and amplifier question.

[av83 10+ year member]

K what about this. I am ony using the front channel as my speakers are wired up in parallel, so what if I bought that amp, hooked it up to the rear rca's, bridged it and had it powering a shallow mount 6.5 subwoofer under my seat with lpf at 200 hz. Has anyone done something similar? It would definitely cover my midbass and give me some more kick in the cabin.

Not worth the effort, and probably won't net you the results you want anyways.

Well I'd like to see what I can do first. So how and what do I do to the door speaker to get a proper door seal? If someone has a link explaining that would be great.

Do this.