Which amps? Ayon makes both PP and SET, both types with differing output tubes. So measurements for one amp won't correlate against another. Google the crossfire III; there was a German review that I believe included measurements. But please don't use those measurements if you are looking at a KT88 amp.
Ayon measurements
I was wondering if anyone could point me at a set of measurements for an Ayon amplifier, something like those that Stereophile often provides, particularly THD+N and the sine wave frequency spectrum showing harmonics. Although I feel that listening is the ultimate test, I like to use the measurements as a baseline for how well engineered a product actually is. I've looked high and low for measurements for any Ayon amp, and haven't found any yet. Thanks,