The Blameless Power Amplifier.

[ncdrawl]

The Signal Transfer Company: Compact Blameless Power Amplifier

any thoughts/heard one?

(i did a search with compact blameless , btw)

 

[AKSA]

Looks like a straight up copy of Self's Blameless, perhaps with minor tweaking. Quite a high component count, but performance looks pretty good.
The moot question: how does it sound?

If it's like the Self Blameless, it would be very clean, very stable and load tolerant, but somewhat unengaging.

 

[brent21holmes]

The performance was fine for me.
Pretty neat and very well performed.
Just a little bit of bad moments bad its still good.

 

[AndrewT]

the Signal Transfer Co is the approved retail PCB supplier for D.Self's designs.

However, there is discussion in the Forum about a PCB layout error that severely compromises the circuit's potential performance.

 

[Lee Knatta]

Andrew, could you please point me to mentioned discussion?

 

[Mooly]

I think it might be this one,
http://www.diyaudio.com/forums/solid-state/101321-3-stage-lin-topology-nfb-tappings.html

Have a read at post #44 for the PCB layout problem, but read it all.

As to the performance of the "blameless" amp, it's everything you might expect a good solid state amp to be, but for me ultimately I found it cold and musically uninvolving in it's presentation.