https://www.tapeheads.net/threads/cassette-dolby-b-record-deck-20khz-play-deck-13khz.87281/
One unusual problem w/Dolby B - even with everything properly cleaned/adjusted/aligned - Dolby B NR can adversely affect the playback frequency response due to the mismatch between the cassette recorder frequency response, recorded content treble content and the cassette player playback frequency response (post #22 explains it all).
Kirk Bayne
One unusual problem w/Dolby B - even with everything properly cleaned/adjusted/aligned - Dolby B NR can adversely affect the playback frequency response due to the mismatch between the cassette recorder frequency response, recorded content treble content and the cassette player playback frequency response (post #22 explains it all).
Kirk Bayne