Jeff. I just purchased a JBL CVSUB50 on ebay thru JBL Direct. It is a reman. unit, and delivered price was around $220.00. The sub looks fantastic, actually compliments the Klipsch B-3 speakers i am using for FL,FR,SL and SR. My theatre room is 18x20, and this sub really kicks a##. NO adjustable crossover was not an issue with my Yamaha HTR-5890(program adjustable).Monster 400 sub connect cable. Auto set at 110Hz crossover(may adjust back to 80 for THX). A powerful sub for the $$$ Best of luck!!!!