STILL another amp

[NU_NRG]

I came across an interesting schematic on PCB-Design website and I was wondering if anyone here ever seen it somewhere? builted it? heard it?

I mainly want to know if it's worth building?

Feedback really appreciated!


~NU NRG-

 

[Nelson Pass]

I don't believe it will work as posted. I see a couple
of critical errors.

 

[P.Lacombe]

The design of the current mirror loading the second differential stage is incorrect. Also, missing resistors in each emitter of both differential stages : possibility of excessive open loop gain (HF instability, TID...) needs some corrections and tuning !

Regards, P.Lacombe

 

[NU_NRG]

Well thnx to Nelson and P.Lacombe for their encouragements
I'd need to know if it's worth to corrects all the small (important) errors? Would I be better off starting with another amplifier?

I'm open to any suggestions from you audio Guru!

I thank you all for your feedback

-Simon