Can't answer your question directly, but i remember reading somewhere that all the speakers used to broadcast the Molson Indy in Toronto a couple years ago were all run off a single crown amp...800watts i think, with a huge damping factor...
also the highest concert level ever recorded was at a Who concert, the speakers were run off a numer of Phase Linear amps.
also the highest concert level ever recorded was at a Who concert, the speakers were run off a numer of Phase Linear amps.