Ok to adjust balance to achieve center vocal image?


I have an all analog tube vinyl system and don’t remember having to adjust my balance setting in order to achieve a center vocal image. I do now though. I’m getting a left leaning vocal image with the balance set to zero. Is there a good way to see if this can be fixed so I don’t need to balance adjust to achieve a center vocal image? Could it be a preamp tube going out? Something else? Any harm in just continuing to adjust the balance - meaning am I experiencing any signal loss doing so? 
Thanks! Paul
paulgardner

Showing 1 response by jrw1971

Lots of ideas here.  If it were me, easily my first theory — especially since you said it was not previously doing this, presumably in the same room and with the same/similar gear — would be that my azimuth had fallen into a leaning position and the stylus was favoring one channel by a smidge.  Lots of ways to check and adjust that, depending on your gear.  Worth a few minutes on googling “turntable ... azimuth.”  My second theory would be what someone above said: my room is such that I need to bring the weak side speaker an inch or two closer to the listening spot.  This can be such an easy fix that it feels like cheating.