A case of direct coupled cathode follower

[Mosquito]

10 to 1 difference in what? Anode current would be a problem. Distortion probably not.

Output swing, there is something wrong wiith the Ayumi model, I presume..
I'm going to check another circuit, a simple basic voltage amp, just to see if the issue remains the same

 

[disco]

Try dropping b+ to 270 and upping the current to 8ma and see how the circuit sound's to you .

I'm listening to this setup now Thom:

An externally hosted image should be here but it was not working when we last tested it.

.. and there's a small emphasis on the higher bass notes, although
the music has a 'fastness' to it that's enjoyable for certain repertoir.

Because I didn't comprehend the effect of using semi conductors,
I studied a little. I'll adjust the loads for more linear amplification.

Thanks TS to allow the space for my experimentation.

 

[Triodethom]

I'm listening to this setup now Thom:

An externally hosted image should be here but it was not working when we last tested it.

.. and there's a small emphasis on the higher bass notes, although
the music has a 'fastness' to it that's enjoyable for certain repertoir.

Because I didn't comprehend the effect of using semi conductors,
I studied a little. I'll adjust the loads for more linear amplification.

Thanks TS to allow the space for my experimentation.

Try tap at the top of the string of diodes at bottom of R7 rather than the top of R2 . Let us know what you think. Then go a bit larger on the c3 . What type of caps are c3 and c1 ?