i was at a local shop otherday and he had 3 13.5'' w1's left and he was like since i only have these left $300 for all of them no tax and they are yours so i took them. I built a box for 2 of them about 1.2 cuft each and hooked them up to my amp and each sub is gettin 150wrms. The sq is really good and is just as loud as my 12'' se was on 600 watts the only thing i miss is the bottom end lowwwww that the se had but what do you expect from 300 watts ? Overall these are good little subs especially for $100 each , i cant wait to try them ported with about 300 watts on each