Denon
AVR-S670H
amplifier
$649
Used market: $465*
Specifications
3 of 6 values have a recorded sourceExpert Audio Engineering Commentary
Headroom Notes
75 W into 8 ohms, 20 Hz - 20 kHz, 0.08 % THD, two channels driven is the honest rating; the 100 W on the carton is 6 ohms at 1 kHz and 0.7 % THD. The S670H is the five-channel model of the same family as the S770H, and it carries the same pair of numbers one step lower.
Thermal Behavior
Rated 4 - 16 ohms. Five channels on one heatsink instead of seven, which is the one thermal advantage this model has over its larger siblings.
* Estimated with the depreciation fallback (~72% retained value). · checked on 8/5/2026