I got a yorkville XT200T right now and I think I will add myself an extension. Im not sure which one to get though, the XC115 is more expensive by like 100 bucks compared to the XC210. I heard people say that the XC115 will add a fuller sound but i recently went to a dealer and he told me that i should really get more 10 inch speakers and saying how godly that sounds. I havent really gotten to testing it but I really want to know would do if you were in my shoes. I try to play mostly rock, jazz, blues, funk, and some metal. I use just an old passive p-bass and my gigs are small to mid sized.