i have a pair of Yamaha HS-50m's and i needa woofer because the little woofers on the 50-'s juss aren't providing tha boom enough.. whenever i make a beat it seems that i'm puttin too much bass into the mix.. SO.. i was wondering what your take is about speakers like these...

http://www.ubid.com/GemSound_PXA252_...602240277.html

which has a 15" woofer.. which i think would b good for the low end.. but i'm not sure.. soo i'm askin on here.. seein if some people on here have had expierence with em.. thanks...