Mono cassette deck from 1981 various distortion from newer tapes.

Hi. I bought a national rx-1900.



When I play old tapes from the 70s and 80s it sounds okay but when I play newer tapes like 90s through today the sound is very distorted and one tape from early 90s the sound goes out like a metronome on certain instruments (classical tape) the vocals especially sound distorted as well. Is it just the design of the cassette player that's causing this? Edit. Actually I think it's playing all tapes distorted. I just a couple of tapes where it wasn't so obvious. UPDATE: I changed the belt and it plays perfect now.

 

…next edit: „…i decided to get me a stereo player, sounds much better now !“. followed by next edit: „got some other player, looks much better“ etc.

 

Says the guy who prolly has a ton of nice gear. Take a hike!

 

This is going towards M90's and DD9's

 

Check your batteries preferably using a battery tester as those apply a load. Pulsating sound can be caused by worn out batteries. The term "Motorboating" is used to describe it. I am wondering if the first couple of tapes sounded good as the batteries had a decent voltage then.