Anyone here know anything about Subwoofer and/or amps?

Head unit- pioneer 6000ub has lots of controls for tuning i have had the 3000, 4000, and 6000, all three were great and held up very well only complaint is the silver color wearing off after about a year but if you use the remote you dont have that problem. Whatever speakers you get get the sub to match. Most brands range evenly from tweets to sub ( like if you had pioneer speakers with kicker subs it would be too much bass with little clarity. also i reccomend 1 sub if you go 12" and put the proper amp to it- (my 04 civic) 1 Alpine 12" powered by 500 rms Autotek amp All high quality wiring( that matters alot)