How Much Difference Does a More Powerful Amp Make?


When would you notice a real difference in sound quality with a more powerful amplifier?

I have a Simaudio W-7 driving Dynaudio Sapphires, and at some point, I may upgrade to Sonus Faber Amati Futuras.

My W-7 is 150 watts at 8 Ohms, and Simaudio makes the W-8 at 250 W at 8 Ohms. Would I notice any difference if I moved to the more powerful amp in a medium-sized room (14' x 22' x 8')?

The Sapphires are 89 db efficient, the Futuras are around 90 Db, but I've read that with most speakers, the more power the better.
level8skier

Showing 2 responses by ptmconsulting

For inefficient speakers with low impedance drops a more powerful amp can make a dramatic difference. For your average speaker you may perceive better or tighter bass and more "ease" at louder volumes. But then again you may perceive nothing different at normal listening levels and sometimes lower powered amps do indeed have better sound than their big brothers.
But there are some very good high powered amps that compete with and beat their lower powered siblings, like the Mccormack DNA 500. But it's always about synergy with your speakers and using the power that THEY need, not that your ego needs.