My Aiwa AdF770 3 head cassette deck with Dolby B, C, Hx Pro, micro grain dual capstan, blah blah blah...makes copies that are nearly indistinguishable from the original source. No joke (as Biden would say).
Aiwa made some fantastic decks in the early 80's, ahead of their time. The one above mine, the f990, rivaled the best Nakamichi decks. I have owned mine since New in 1983. I use it often, I love it.