> The difference is not one of loudness but of 'energy' Aren't those the same? Put more joules into the speaker wire and more joules of sound pressure waves wi

> The difference is not one of loudness but of 'energy' Aren't those the same? Put more joules into the speaker wire and more joules of sound pressure waves will come out of the speaker cone, which just means the sound will be louder (until you reach the mechanical limits of the speaker, of course, but no DAC in the world could possibly change those).