The mains are RT-8s with a 6.5" woofer and 1" tweeter The center is the matching Polk center, the CS-250s. While both are 5 years old, they were only used for two. The rest of the time they have been carefully stored in my closet. The surrounds are Sound Dynamic bi-poles with .5" titanium tweeters and 5.25" poly-propylene mid-woofs. The sub is a Polk PSW-150 with a 10" woofer and a 200-watt amp. What's the catch? I don't want to go through the hassle of shipping them. So, I'm looking for a buyer who lives within a reasonable driving distance of Washington, DC. Please contact me if you're interested.