Hi, first the components then the question. Alpine 9835R 2 x Kicker S15L7 2 x Kicker 1250.1 Amp 1 x Yellow Top 2 x 2 Farad Soundstream Powercap 7 Different housings were built to me. So the question: It’s insanely loud in my Astra G but the pressure is totally missing when I lean forward it pushes like stupid but not in the normal sitting position. have tried everything, phase + -, box moved, other liter numbers. I don’t know any more. Listen hip hop and let run on 80hz m sometimes 60hz. a buddy has a 3er golf with 2 rockford he woofer 80,/piece of the felt pressure is much more though that is yes miniwoofer 30cm and 200watt/rms.????????? many thanks