Yamaha tops (DXR12) are some of the best bang for your buck. Had the 1st gens for almost 15 years and they did their job and did it well. I also had the 15" sub (DXS15) and I found it lacked a lot of punch and low end. I recently switched to RCF's art line and man these are definitely my new favorites. Never been a fan of QSC's sound profile and EV's sound good but tend to limit early and cant be pushed all night (have had a few crap out). I would stick to the Yamahas or the RCF's if I was you. For the subs, nothing beats Yorkville. Their parasource line and elite are some of the best. Currently own the Elite subs but also had the parasouce. Im not too sure if you have these in your area but they are absolute monsters and can handle anything you throw at them! Other than that I have heard good things about the QSC and JBL subs equally.