Low Points
• Class-D "digital" amps have tons of power and run quietly and cool. However, they tend to lack the heft on the low end that you get from the best Class-AB amps, such as a Krell or even a comparably-priced ATI. Those amps are far heavier, larger and run much hotter, often with more distortion, yet there is no question as to the difference in sound. It is not a "one is better than the other" valuation. Class-D amps just sound different than traditional Class-AB amps.