A >£200 DAC. I am doubting that it significantly improves the sound of my 1990s Sony CD players. Maybe it is just me. This is probably the first dubious, faddy thing I have bought since starting in 1964.
2X Nakamichi 700II plus electronics overhaul. Awesome sound from cassettes of any age thro' Primare amps and Dali, oh, and a Velodyne sub.