I guess your right did not give enough info hope this helps out.. The car is a 04 svt focus hatchback. The amount of room willing to give up, all of it , but willing to give them up if needed. I have 2 , 3000 watts rms at 1ohms mono block bass amps. They have a 18 db remote gain knob. I have a 4x150 rms at 4ohms mids and highs amp. I have a stinger spv44 battery and a optima yellow top battery under the hood. Also a 200 amp alternator, a 20 farrad digital cap, and a 2 farrad digital cap. Also a lanzar optid100 bass processor/line driver with remote knobs, and a phoenix gold sld44 4ch line driver. Don't have subs or mids and highs or head unit yet. I used to like being one of the loudest guys around ,but as expensive as the products are now a days I want it to be loud but beautiful. So i guess i am now a sq man, but i would still LOVE to be able to adjust some knobs reset some settings put a bass track on and make people sh*t themselves lol or at least make them go turn theres off. So i guess I'm wanting the best of both worlds. Oh yeah i know this is also a factor i mostly listen to metal hard rock but i am a metal head new metal and old metal. nothing but yellow top optima is installed yet and budget is flexible. The subs i have been looking into are 2 cerwin vega stroker pro 12s the reviews claim its the most beautiful sounding spl sub they ever have heard