Yes, you are correct... it will now have temperature compensated class
AB biasing. This is important as the heat sinks temperature rises...
and if not controlled... the bias will increase dramatically. This can
cause thermal runaway of the output transistors (possibly causing
premature failure), and degrades the overall amplifier efficiency.

www.telstar-electronics.com


JSF wrote:
Looks as good as the last one, why the changes?
Is there active bias? looks like it.

Still glad to see that there is someone that cares about their work.
The other amp makers do very ****ty work and looks like it.