So right to left is "much more detailed" the bass is "more powerful" the stage is "more powerful" and the highs "are also more present."This sounds like the fuse has probed the nether regions of the AC flow aperture and caused an opposite current flow, it'll take twice as long to burn-in if at all now, maybe the OP would be better off sending it back and getting a new one.
Sounds to me like you think it sounds better right to left.
So what's the question again???
Cheers George