Murray, you can't win. I once had an exchange with him about amps. Paul maintains that all well-engineered amps sound the same. When I asked him to tell me how I could establish an amp was well-engineered, he declined. But he offered the observation IIRC that if two amps sounded different, at least one of them had to be less-than-well engineered.

I can't be arsed to look it up, either on this thread or on the now locked one, Paul has come up with a similar gem for cables. He maintains that all electrically similar cables sound the same. Asked how to define "similar", he declines. But if you can hear a difference between two cables, they obviously cannot be electrically similar.

And his favourite discussion technique is to put the burden of proof on you.