restorer-john
Grand Contributor
Would you please provide me with a link that would show that "published measurements on vintage amplifiers were extensive, exhaustive and highly verifiable, because they often appeared in various monthly publications around the world" this compared to SOTA measurements published by JA in Stereophile with regards to dynamic range, lowest distortion measurable and CCIF 19+20kHz measurements near to full output swing? Are there measurements showing step response rise time at high voltage swing, that would allow to read slew rate and thus have a qualified guess on SID/TIM induced distortion? I will gladly appreciate such info, as I am not aware of such measurements published in 70-ties and 80-ties.
"A link"- are you remotely serious? That's kind of funny, if it weren't.
These are your claims:
These old amplifiers from seventies were often good in THD 1kHz, however not so good in THD 10kHz or high frequency CCIF IMD.
I ask you for specific products where your claim is true. You give me absolutely nothing. Zero. Nada.
So, to help you out, here's a link to what I would regard as the ultimate resource as far as electronics and HiFi reviews goes. Essentially every magazine of note from the 1960s onwards, the world over. Knock yourself out. (spolier: it might involve actually reading a lot, not just a "link")
https://www.americanradiohistory.com/index.htm