Going by memory. 32 years ago in a controlled environment at my Dealers showroom in Hamilton, Ontario. On a pair of Mirage M7si’s that I was going to purchase. He played tracks from On Every Street on two separate Preamp/Amp combo’s
He knew my budget would allow for Adcom not Bryston and I was curious about ROI between the brands.
I could not hear a difference ! Being Canadian (but living in Phoenix for the last 10 years). I’ve basically written off Canadian Audio Electronics brands since then (plus none of them would hire a freshly minted Tech from my local CC).
I enjoyed that Adcom GFP-345 w/phono preamp option and GFA-545II (later traded up to a 555II 7 years later.
Selling the preamp during the home theater craze of the early 2000’s was a mistake but the 555 (used) got another 15 years of use before it went “up in smoke”.