I have quite high-powered amps (McCormack DNA 0.5 monos, modded by SMC Audio, which put out several hundred watts each) driving relatively small speakers (B&W 805 Signatures) and I'm really quite happy with the setup. It took me some time to get things sounding right in this room, where I've been for about a year, but I'm enjoying listening to music these days, more than in recent times. I don't think that having lots and lots of power to spare is a problem. And once in a rare while, on a Saturday afternoon when I'm pretty sure that most of my neighbors are not in, I use a little of that power, letting the White Stripes or Neil Young or even J.S. Bach fill the room. And then, the mondo power is, um, powerful.