Bonddam
Headphoneus Supremus
The R is done on current like my Dragon lvl 3 that produces 1 amp of current per channel. You can hear the power when only having 5 watts of power and sounding like a gigantic amp. Dragon created to power Susvara and 1266 while no type of noise on easy headphones due to its 8 gain switching stage. I'd have to find out what Jeff's amp can handle.