The $25,000/pair M-2000 Self-Analyzing Balanced mono power amplifiers are built like (fashionably luxurious) tanks and output 600W into 8 ohms. They weigh in at 170 lbs each. "They have an S/N Ratio of greater than 110dB," Gong confessed, "so they are very quiet."
Lord, yes, when Gong played Rutter's Requiem through Dynaudio…