If you choose speakers of high efficiency, 100db+ you can use amps with just a few watts of power. Roger Russel of Mcintosh speaker fame talked about how he was tasked with building speakers that could handle 100's of watts. The reason? To sell big power Amps that they also produced. Speakers can be had with very high efficiency and that's part of the reason the single ended amp is being made by quite a few companies these days.
Its a matter of choice, sure if you want a 500 watt class A Pass Amp/Space Heater its readily available... He also has tiny 5 watt amps under the First Watt brand.
Its a matter of choice, sure if you want a 500 watt class A Pass Amp/Space Heater its readily available... He also has tiny 5 watt amps under the First Watt brand.