having 2 dif size subs in the one system

i listen to high bpm and low bpm music, i have heard 8inch 10 inch and 12 inch subs but not 15, i find the 12s to be too big for high bpm music and the 10s are too punchy for slow jam etc. is it ok to fit say.. 2 10"s and 1 15" or 1 10" and 1 12".

no one does this but i cant see what would be so bad about it, if there both running at the same time, with an equalizer.

Yes it can be done. If you have 2 amps, you could tune each amp to work best with each sub. (lower response for 12, 15's, higher response for 8, 10's). I wouldn't put them in the same box though.

Since 10's are too punchy for you..why not just do 2 12s and then get better midrange speakers?

cause that still doesnt match 10s

for example, my cousin has 2 7x10 kenwood mandrills 200 watts each
and a 1000watt 12

the 7x10 should give off some punchy bass but with the 12 you cant hear it,

theres this song i play in my car and it gives off way bigger bass than in my cousins car, cause the bpm is high it sounds crap on his 12s and it sounds mad in my car and eveything shakes from the boot to the steering wheel.
btw the song is nelly - tho dem wrappas

basicly i want vibration and spl

THe box for his 12 isn't built right. And Unless you run the 12 under 50 hz and the 10 from about 250- 50 hz the 12 will drownout the 10's

i had 2 10's and 1 12 in my civic. sounded fine, no sounded awesome but not worth the complexity. try looking at a 12 from a really reputable manufacturer known for sq, it should give u all the punch and low range u need. look at jl and eclipse for starters.

put them in a separate airspace. the 12s will over power the 10s if you leave them in the trunk. try to do trick install and put the tens in your doors of florr (it can and has benn done). or you could just go with 4 jl12w7 and forget the 10's, of course you would be giving up the ability to hear afterwards but hey anything for a loud car right??!!