8 Watt Hifi with few parts

[lineup]

Hello.

This amplifier is designed to not consume too much power
eventhough the output runs in True Class A.
Using 2 power transistors you will get 20 Watt across each.
The maximal output is around 8 Watt RMS
with very low distortion. (~0.003%)

Actually this amplifier is a spring off from my explorations into Pass ZEN amplifier.
But he uses no opamp to handle the feedback loop.
He takes the feedback right back to the MOSFET gate.
Original ZEN Amp from 1994: http://www.passdiy.com/pdf/zenamp.pdf

Using an opamp will be another cake.
Now we can begin talking real Hifi.
Here is the simplified diagram of my idea.
I post a detailed schematic later.

Regards Lineup

[anti]

Hey, this looks interesting!

An idea: how about using a JLH output stage (with mosfets)?
Perhaps this could become the "ultimate" JLH ...

With "precision-enough" opamp, I think that it would have a very low DC-offset in case of symmetric supply as well.

(sorry to hijack)

[tadiam1]

The last year duild an proto of this amp.Work well.but my circuit have an small signal transistor in the second fet.