I will wrap up this amplifier section with an all-valve design, and not any design, as this is one of the very few audio companies ran by a woman (I believe there is another valve amp company in Eastern Europe which is also ran by a woman).
It is kind of refreshing to find somebody from the so called "sexe faible" in a very politically incorrect way running a very successful business and creating amazing products.
I am certainly not a valve nut, but I do acknowledge the particular interesting properties of such designs and my first amp was indeed a DIY valve contraption (although fed by a transistorised preamp...)
Here is a link to an interview of EveAnna Manley on a French Radio and blog - recorded on my birthday!
Born in France, well travelled, relocated to Sydney in 1997.