You still owe me a public apology. Until you give it consider yourself ignored. That's twice you've been asked now, you really shouldn't need to be prompted.
I can point you to lots of measurements of amps and cartridges, yes. Stereophile and Hi-Fi World, for example, publish independent test results every month of the products they review. If an amplifier manufacturer claims a THD of 0.1% into a certain load, that claim is easily measurable. Effem, on the other hand, makes lots of assertions and offers no substantiation for any of them.
The other difference, of course, is that amplifier and cartridge design involves real electrical design and engineering, unlike plaiting a bit of wire from RS Components.
But, until I get that apology, this is the last time I will acknowledge you at all.
-- Ian