I can't say anything negative about other brands of stereo equipment. I believe you get what you pay for. I can tell you this, if you wan't some major thump, a JLHD750/1 amp, and a JL12W6, in a ported box will definately pound. Not sure what kind of money your looking to spend, but I have had a system in every vehicle I have ever owned, and this one gives me a headache. I would be intersted in hearing two 10W6's in a crossfire. Good luck with whatever you decide to get. chris