I've noticed that the LP12 tends to sound dark, and without detail if the bearing oil is low. Considering you just purchased it, perhaps the oil was drained prior to shipping? Or leaked out?
When I received mine, the seller shipped with a piece of masking tape over the bearing and a bit of paper down inside the shaft. When I added new oil things got much better.
Also, I have a friend with a turntable of different manufacture which is having bearing trouble (out of adjustment and adjusting screws are stripped) His table sounds dark and without detail too. Perhaps this is a common thing?
When I received mine, the seller shipped with a piece of masking tape over the bearing and a bit of paper down inside the shaft. When I added new oil things got much better.
Also, I have a friend with a turntable of different manufacture which is having bearing trouble (out of adjustment and adjusting screws are stripped) His table sounds dark and without detail too. Perhaps this is a common thing?