What is up everyone. I am obviously (post count) new to this forum. One of my friends suggested that I join an audio form to find the perfect set up, and that makes sense. I have had the following set ups Car 96 Dodge Intrepid Two 12 inch dual subs (500 watts each, with 750 watt dual amp)---blew the amp due to stupidity Two 15 inch razors subs (1000watts each, with 750 watt razor amp) blew one sub, and came to the point where this system is not loud enough for me Three 12 inch kicker CVR (can not remember the watts to those things, but everyone knows them anyways, with a kenwood 1800 watt amp) Two 12 inch zstat subs a knockoff of the 15in razors above (i think they were rated at 750 watts each, but could take way more, with the same 750 watt razor amp) One 12 inch RE MT sub (no real rating to the subs because they are comp subs, with a 2500d orion amp, rated 2000 watts max) And now what I have in this car is... Two 15 inch treo subs (dont know the specs, running off of the 2500d orion amp) ...the reason i posted all that is because no matter what set up i get, i dont get the response from the subs that I get. I now have a suburan LS and I am debating either four 15's or two 18's and I am at a crossroad with this one too. I am here to figure this out and learn how to figure out specs of subs and how to set things up for max output.