@rocky1313 is the SL-1600 a mk2 or mk1? The mk2 is a very nice turntable. Either would work very nicely with a modest cartridge upgrade to an Audio Technica VM540ML, which is a mid-high compliance moving magnet design. As for the phono stage, I’d say stick with the in-built preamp on the SA-300 receiver if you like the sound. It might benefit from replacing the caps and resistors with new, 1% precision tolerance parts. Another direction that you could explore is the excellent NAD PP2 phono preamp. I would recommend an upgraded power supply like I did (a 2 amp 24vdc regulated power supply of my own design with massive filter caps, which really cleans up the noise floor and improves dynamic range. I’ve also upgraded the op-amp to a Burson discrete V6 Classic Duo, and wired the input with balanced wire all the way from the turntable with XLR connections. A little more than you asked for, but fun if you’re good with the soldering iron.
