I have M60ti, VP150 and 4 Qs8s. I just moved them down to the basement last night (22x15x8). I am using HK (AVR335) and I love it... love it a lott!! The hk is 55 watts and my first thought was it would be weak for the speakers... but upong testing last night... the amp just handled them perfectly. The low freq is also good... clarity was awesome watching the eagles... can't be any happier.