Are most budget & mid range amps under-powered?


I've been reading some articles by a speaker manufacturuer about how under-powered most modern amps are for the speakers they have to drive.
The basis was that for "true hifi", a system needs to be able to achieve unclipped peaks of 105dB at the listening position, often about three meters away. For 90dB/Watt @1M speakers like mine, this means I need an amp capable of over 125W per channel, which is a lot more than my NAD 50W/channel amp can manage.
The same peak from 87dB/Watt speakers would need a 250W/channel amp.
Does this sound right to you guys, and does it mean many amplifier manufacturers are under-powering their amps?
carl109

Showing 1 response by carl109

Porziob: "Not everyone chooses to listen 105 db @ 3 meters."
I wasn't suggesting a constant listening level of 105dB! The articles I read referred to a system being able to deliver an unclipped momentary PEAK of 105dB, which equates roughly to a live performance level, at an average listening distance of 3 meters.
Of course I've heard of brands like Rotel, but even they make amps of 50 Watts/channel, which if matched with speakers of 87dB/Watt@1meter, could only manage an undistorted peak of around 95dB.