Solid State Amplifier Advancements In A Decade

I would read Nelson Pass's writings on the evolution from the X to X.5 to X.8 series of Pass amps, as well as the same for the XA series...

darTZeel NHB-458 monoblocks.

no negative feedback. only 6 active devices in the signal path. astonishingly low noise floor. 500 watts into 8 ohms. all the circuits are suspended inside the chassis for excellent built in isolation from feedback.

amazing first watt; yet very powerful and authoritative.

the best of tubes and best of solid state. sounds like music.

you can have it all. but....there is always a but.....it will cost you.

MY Pass 350.8 sounds much better than my old Rowland 8T.