There is so much more to an amps power than watts per channel. WPC is an output equation that is a result of everything else going on under the hood. There are 500 wpc amps that won’t drive a 90 db speaker and then there are 10 wpc amps that will make the same speaker sing with no distortion. Thus your question is to simplistic for an in-depth conversation of what makes an amp an amp. For starter go read white papers on the difference between class a class a-b and class d amplification designs. Then come back with your question of what amp will drive my speakers!
enough amplifier power
I am curious as to why so many people think that their amplifiers are powerful enough for their speakers. I use a Yamamoto A-08S--around 1.5 watts output. I use it with a Fostex F-106ESR. The combination is a little ragged at low volumes, but beautifully immediate. Distorts awfully at anything approaching a decent volume. I see people using 20-100 watt amplifiers with medium efficiency loudspeakers. I do not see how this can work any better. If you work out the math, most loudspeakers need 200-500 watts minimum. That is not even taking into account low impedance loudspeakers. Do people not know what distortion sounds like? Or, compression either, for that matter? Please enlighten me.