Pass 600.5 vs Clayton 300

just a long shot but has anyone compared these 2 in the same system? I'm thinking of selling my Supratek mono's because I feel I need a little more power than 100wpc for my Vandy 5a's(big room 16x36x14 including kitchen area to the back) - I occasionally like to rock out ;) If I do make the move to SS I hope I won't regret it.

Thanks in advance