Marketing departments specify power ratings for amplifiers quite creatively. This page provides a compilation of power ratings at 8Ω and 4Ω loads with a THD < 0.1% 20Hz-20kHz, 2 channels driven. Products which do not specify these numbers may be included, but with a remark.
The intent of this compilation is to cut through marketing and help consumers find suitable equipment. Whether or not a product which measures well sounds better or worse than another product is a completely different discussion.
If you find a factual error or omission, please send an email to firstname.lastname@example.org. Numbers are from the manufacturer if not otherwise stated. I am not responsible for the data provided.
|NAD C 328||40W||40W||<0.03%||Specification states both 50W and 40W.|
|NAD C 338||50W||50W||<0.03%|
|NAD C 368||80W||80W||<0.03%|
|NAD C 388||150W||150W||<0.02%|
|NAD C 316BEE||40W||n/a||0.01%|
|NAD C 326BEE||50W||50W||<0.009%|
|NAD C 375BEE||150W||150W||<0.009%|