If we include integrated amps sold in Japan, ranked by $ per Watt, Luxman's and Denon's seem to be on top, what are the other brands that make expensive integrated on $/Watt basis?
For real separates, I know sky is the limit, like Bugatti, Lamborghini, Aston Martin etc.
Even if we ignore their much lower price points/brackets in general, I am not really sure integrated amps should be considered separates.
They are like SUVs, automobiles that are neither sports nor utilities.