Citata mindosy rašė čia: Peržiūrėti žinutes
jei dar kas nepostino, tai manau čia yra daugelis jei ne visi terminai
http://www.audioc.com/library1/glossary.htm
geruliai šitie man

Maximum power rating: A meaningless specification.
.....
Peak power rating: Another meaningless specification unless references are given..

Peak-to-Peak power rating: See above.