On Mon, 2019-01-21 at 09:53 +0000, Jordan Muscott wrote: You are welcome! I found a review https://www.hifiengine.com/manual_library/yamaha/k-540.shtml. It seems to be a pretty good tape deck. It's a pity that it has got no bias adjust. My Yamaha MT44D also has got no bias adjust, so I needed to test buy different cassettes and if one was very good, I needed to visit the same shop again and buy a bunch of cassettes from the same spread. OTOH I owned a cheap AIWA stereo tape deck with a manual (not an automatic) bias adjust, IIRC it was not that picky as the Yamaha 4-track, but IIRC still picky regarding the chosen cassettes. Regarding playback I wonder how old your tape cassettes are. I mastered a lot on stereo cassette tapes as well as on DAT. I don't own a good working cassette player anymore and no working DAT player at all. For the analog tapes I wonder how much highs got lost and how audible the "copy/crosstalk" effect is (I don't know what it is called, if you hear the beginning of a song in the silence before the song, that is caused by the winding, the reason that professional tapes are stored rewound). And I wonder, if anything happened to the DAT tapes. Btw. if I should find the time to borrow the professional DAT player from a friend, I guess I would use AES/EBU of my RME card and the DAT player to copy the DAT tapes to the PC. If the Linux driver shouldn't work, I would install Windows. On Linux at least ADAT of my RME card is broken.