I recently bought some Mission 753f's and liked them so much I have just got some 754f's too. The 753's are now used as rears. I am using a Harman Kardon 5500 to drive them (5 x 85W) and both sets sound fine. However, I can't help wondering whether the 754's need more power. I remember one thread where someone was getting very little bass out of 753's and I thought that this must be due to a limiting amp. It could be that the 754's need more power than the 753's - I wouldn't know. The problem is that there is very little info out there on 754's. Does anyone have experience of these speakers and the effects of changing amps? I want to get the best out of these 754's so any info would be appreciated.