Take a typical 90 dB SPL speaker. This means that it comes out of 90 dB SPL with one meter to one watt. You will earn 3 dB for each double power. Lower the 2,000 watt to 2048, just for simplicity.

For most people, 50 watts will be more than enough, and the less expensive Denons receiver, l'AVR-1513, is estimated at 110 watts per channel. Watts check check today the quality of are cheap can make expensive.

Either you like loud music, or you've been exposed to very loud music for a long time and it doesn't sound so loud. Anyway, 10 watts is very strong for most salons and most people.

The power of the speaker depends so much on the speaker's ability to transform the amplifier's power into sound pressure (loudness). Most speakers are now reasonably effective in converting electricity to the sound level, at about 88-90 dB at 1 watt measured 1 meter from the speaker.

The same is true for the higher power amplifier 100W non-play double strong as a 50W amplifier assuming identical speakers, it was only 3 dB stronger, or that is obvious, but certainly not a perceived double citizenship.