This topic has been closed for further comments. You can use the search bar to find a similar topic, or create a new one by clicking Create Topic at the top of the page.
But on to the more esoteric. Generally speaking, a turntable or pre-amp will have RCA output jacks. You could conceivably get a device that takes stereo input from RCA jacks to an optical output that you could connect directly to the PLAYBAR. Now, if you use your PLAYBAR to watch TV, I wouldn't recommend this, as switching the optical cable from TV to Pre-amp/turntable might be too much handling, and the plastic connector might become deformed.