when companys start 'back in the day ,when audiophiles had 10watts.' you know its gona be 'one of those pdfs' ;-)

the efficient approach is a different one-i like it

Class A :-)

But it seems like the main idea was 'nice sound' not necessarily low distortion.

Having only two stages, these amplifiers embody the audiophile quest for the most realistic sound through minimalism and purity of signal path. Single-ended Class A amplifiers have what is known as a monotonic character; they continue to improve as the power level goes down.

thats debatable.but a shorter signal path can be good.

I do agree for sure,at low power much more better.

The high mass of the cone results in slow attack and decay response to impulses from the amplifier, but this has been considered an acceptable trade off.

This just means the speaker has a lower top end usable frequency limit.

It will appeal to many retro audiophiles that like the classic gear :-D

il stick to my 1600$ all horn system plans :-)

Cheers!
mike.e