I really never hear peoples opinions on a good SQL car sub. When i say SQL Im looking for a good blend of SPL and quality, a sub that can do it all and do it with some emphasis RE XXX? Something by Adire Audio? IDMax? Digital Designs? What about Crossfire? Never hear about them I have no idea I know there are personal preferences, but Im not asking for the loudest sub here so obviously personal preference comes into play, im pretty much looking for contenders for the spot, i know a lot of them are probably pretty close Also the budget is pretty much not important, allow 500 as a max for price on sub. (maybe theres something im not thinking of as well) Another issue many people like me have to deal with is the fact we cant just go and audition stuff, we need as much feedback as we can get to help us make our decisions. Regardless of the fact there is no real 'perfect sub'. Also if you are going to say something is better than something else please give reasons.