Marantz auto return table 1974 - 1989, added a Linn basic arm in mid 80s - not that it made a dang difference. Seriously.
90s to 2005 endlessly tried to improve CDP sound and finally went back to LP/analogue in 2006, followed by the next struggle to make MC cartridge(s) sound, (early PS Audio phono pre was of little help), also later including SUT - finally surrenderd to various NOS MM/MI cartridges.
2006-7 early type teardrop shape PROJECT TT with carbon fibre tonearm (not a quality product really). Implemented various 'improvements' - result?
Not noticeable. At all.
2007- present SME 10, later upgraded arm from SME IV to SME V. Some improvement but not all together 'weltbewegend' (earth shattering?)
Now CDP ML390S sounds as good as analogue, using Ortofon Cadenza Black and Fidelity Research SUT. 😏
Michélle 🇿🇦