@gdnrbob.
I find it interesting, in theory, that a designer like Ralph Karsten specifically omits the output transformer in his designs (hence the OTL) to eliminate the distortion caused by the induction in an output transformer. Then someone, like Zero Autoformers, creates a transformer in a box to be added to the signal chain to alter the impedance. But the only thing that matters is the sound. Please let us know what you hear if you try some.
I find it interesting, in theory, that a designer like Ralph Karsten specifically omits the output transformer in his designs (hence the OTL) to eliminate the distortion caused by the induction in an output transformer. Then someone, like Zero Autoformers, creates a transformer in a box to be added to the signal chain to alter the impedance. But the only thing that matters is the sound. Please let us know what you hear if you try some.