Summary: Good sound for the money. I bought 2 at a pawn shop for $100 and they came with boxes. I am currently only using one. I have $75 into it (amp,sub&box) and I am pretty sure that I got $75 worth of bass. I can't ask for more than that.
Summary: These are good subs for the price, run really good with the mtx thunder 3401 amp perfect match for them. I'm now getting ready to switch to the 12" cvr kicker with the kicker ZX550.2 amp. just needed more sound for comps.
Summary: I have had 2 different subs. the MTX 6000 and some POS sony's. i love the 6000's. i have 2 10" and they hit hard and loud. before i knew what i was doing i blew one because i had it wired down to a 1 OHm load. but once i got it wired correctly they sound awsome. they are also really loud.