Whats up dude I know your pretty new at this stuff and if all you want is sq that can easily be acheived with 700 dollars now do you mean 700 for everthing total amp, sub, wire, eletrical, box or 700 just for the amp and sub well if its 700 for just the sub and amp thats more then enough but hear is my sugestions search up the name idmax, magnum, avalance/arsenal those are very nice sq tight beat subs probaly some of the best on the market in a sealed box will love playing all kinds of rock music. And for amps kicker, orion, elemental designs, directed, viper, jbl, autotek, memphis, cadence, avionoxx, crossfire, mtx, planet audio, rockford fosgate, us amps, soundstream these are all very good amp companies that do there rated or more power in a clean signal

and also if do not buy a pre-fab box in any case either spend the extra money on a custom built one, there should also be people around where you live on this board that can build some nice boxes or just build it your self building a sealed box is not hard and you can have pretty much any one on here make plans of a sealed box for free