Denon's don't have 'warm power'... just more power than their specs usually claim. Therefor they power speakers better in the higher volume ranges than other recievers that often times exaggerate how much power they actually produce.
I know this because I had a Sony reciever years ago that claimed it was 120 watts x 5. Then I bought my Denon that claimed it was 125 x 7. Using my Cerwin Vega floor speakers it was a very easy win by Denon once the volume went up, up and away.
I had kinda figured as much as the Denon weighed more than twice what the Sony did.
