I do play vinyl on occassion, ok rarely on my SP 1.7. Just don't listen to Vinyl all that often. I use an Aragon 47K phono stage (don't shoot me - had this before the SP 1.7). However I use the 2 ch bypass input and not the 5.1 analogue input (I assume that is what you meant). If you don't have full range Fronts, you will loose bass management in the 2 ch bypass mode. However, you can regain your bass management if you listen in the non by pass mode but then the signal gets processed.