Hi Mike,
This may be your lucky day! I am selling (2) KP-366 and (4) EV Sb180 Subs. I used these together for about 4 years and it is a killer system. The EV subs have EV's most powerful 18" driver. 600 watts continuous! 1800 watts peak. When I coupled 2 per side they work phenomenal. I love both the Klipsch and EV's but my band doesn't do gigs that need that big of a system anymore. We are a local Christian band that does mostly Coffee House type gigs. If you are interested feel free to call me anytime.
Cell: 609-977-5502
Take care,
Chris