Clark L. Coleman wrote:

I have seen online reviews of particular cassette decks that claim
that Dolby C makes for bad-sounding recordings, especially on high
frequencies. Example is Harman Kardon DC520 cassette deck.

Myth.

I have only used Dolby B in the past but need to replace an old broken
deck. Is Dolby C good on most modern decks, but bad only on a few? Or
do people complain about it in general?

Dolby C can come very close to CD. Use metal or a high-quality
high-bias tape, set the levels as high as possible without causing
objectionable distortion, and make sure you are always using a clean
deck.

http://www.mastersonaudio.com/tips/20030201.htm
http://www.mastersonaudio.com/audio/20041001.htm

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