one good quality 10 will do that for you with a decent amp..i have a couple amps that may fit your budget, and out perform most newer amps also..What kind of vehicle you working with? vehicle air space plays a big roll,along with your stock electrial,to also save you from expensive upgrades for your budget?? im in rockwall area, and wouldnt/dont mind helping you on an install within a fair 2hr drive?Yet,do start by getting rid of your current equiptment if you can..i only recommend this to you,due to you sounding not happy/pleased with what you do have..its best to start over at that point in my opinion.Start prices of what youd like,and if you get no bites, then lower the prices/or just state the gear you have,and put best offer,and see who is willing to offer best price..you may see a poss $75,on the volf subs and box combo in the end,but..its better than letting it sit too????What vehicle you putting a system in??