dude i dont want to get into all this....
some people can pound the living hell out of 2 308 (me) while some can only burn down subs in 5 mins flat!.
the bottom line , all the sub mentioned are capable subs. from all my experiences , the most important is according to number
1) Air ports
2) box tuning
3) amp power
4) Headunit
5) subs.
alwaz start from number one and then come down to the end. ppl here start from number 5 and till the time they reach number 2 , their subs are already burnt!
and out of those ,
in terms of deep
1)pioneer 3001(somthing which splfanatic wanted to hear :p)
2)alpine type R
3)CV
4)308
interms of loudness
1)CV
2)alpine type R
3) pioneer 308
4)3001.