The whole thing all sold in one whole package set everything you need to start your own disc jockey service two 15" b-52's and one 18" cerwin-vega supwoofer that is just the prime of the speakers this whole set up is right around $20,000 not including cds over the years. everything works very good just need alittle TLC just set it all up acouple of months ago and man so much power. have not used it in any kind of gigs for about two years now but its all ready to go i will include all cds for a total of $7500 so all you have to do is start making some $$$$. its a must go asap need the $$$$ must go for this price. its well worth it not to meantion the lighting system as well. its been my baby for years. time to let it go. i can be reached at 47