When copying cassette tape does high speed dubbing affect the sound quality ?

Question

or are you better of dubbing the slow way ?

Answer 1

It does degrade the quality slightly but near unnoticable it should be fine.

Answer 2

I used to do sound booth work for a church and would use high-speed dubbing to make copies of the sermon. I say it's fine for speech, but for other uses, normal dubbing is best.

Answer 3

Hi speed should be ok, if it made for it. Otherwise the equalization will need to be changed.