[project89]

the w7 13 is the jl to buy.but be prepared to spend alot of money on an amplifier
they need atleast a 1,200 watt amp to be pushed decently,most ppl run amps with 1000+ rms ratings and 2000+ peak to push a single w7 13.The w7 13's are known to fail at levels above 2,300 watts and shortened life spans with 1800-2200 watts.If u want something that sounds good and can be very loud if u want look into a pair of alpine typr r's, or for something more serious look into one or 2 alpine type x's
the type x is comparable to the w7 and dosent require a massive amplifier or box ,not to mention they are about 1/3rd the price

and stay away from places like bestbuy/circutcity/sixth ave elec,etc they are all way overpriced,ur best bet is going to a real car audio place and stay away from the kenwood/pioneer amps/the old rockford stuff is decent.and never be fooled by peak power ratings.rms ratings are more important then peak.u can buy an amp with a 800 watt peak rating but only have a 200 watt rms,were an amp with a 400 watt rms and 600 peak ratings will blow away the other amp hands down