In general, everything should be as short as possible However, the shortest definitely need to be the lowest voltage… like the TT to phono stage and the phono stage to preamp. If you have to go for a long run do it between the preamp and amp. Very short… one or two feet between the amp and speakers can be absolutely incredible. So, if long… between preamp and amp.
How long should speaker cables be?
My cables are 12 feet long but with my current setup 6 feet would be more than enough. I recall reading somewhere that connectors should be short and speaker cables should be long. Does anyone have an opinion on this?