Are you 100% certain that low damping factor is always best?Yes of course it is, unless I can think back to the 80’s when there was a speaker with purposely an over damped design, as Linn/Naim (Ivor Tifenbrun & Julian Veriker) in cahoots back then tried to do with the dual B139 Isobaric speaker which had no bass!! when driven by a Krell!! of of all amps.
That speaker to have bass needed an amp that was designed to have poor damping factor, hence Linn/Naim cornered the market with that little marketing duo, as anything else driving the Isobaric sounded wrong.
So the amplifier will not act as a "tone control"Wrong, on the Alexia that OTL amp will have anything but a flat frequency response driving those speakers, to think otherwise remember Supertramp "Dreamer"
If you look at the amplitude response curve and impedance curve, you will notice throughout the base, they are somewhat inverted.Now in effect your saying that, the OTL’s lack of bass drive current, and poor damping factor, will be a perfect match for the Alexia, and an amp like the Gryphon Antillion is not!!!!
I’ve never heard such a crock of **** I’m sure now you two are ******* in each others pockets.