It is;-)datasheet “Opera Only” Project from Andrea Pivetta
Pivetta's amplifier is very entertaining much like other projects writ very large. My hat is off to him.
At the same time, at my current stage of development I take more delight in simple little amplifiers.

At the same time, at my current stage of development I take more delight in simple little amplifiers.

I once heard a demo of Naim Statement amps, it sounded multiple levels / worlds better than their 500series kit which already is stunning. My question would be if such quality is possible with small (diy) amps...