Consistent with comments by some of the others, my ART9 sounded good right out of the box, and never sounded awful/terrible/bad/defective (to use some of the adjectives that have been stated above) at any time during its breakin period.
Also, I had purchased it new, from a dealer, and installed it myself. So it was not subjected to any prior breakin.
Safebelayer, keep in mind that as I alluded to earlier it is conceivable that the cartridge might be miswired internally, such that there is a polarity reversal in one channel. Especially, as I said, if imaging is vague and diffuse.
Regards,
-- Al
Also, I had purchased it new, from a dealer, and installed it myself. So it was not subjected to any prior breakin.
Safebelayer, keep in mind that as I alluded to earlier it is conceivable that the cartridge might be miswired internally, such that there is a polarity reversal in one channel. Especially, as I said, if imaging is vague and diffuse.
Regards,
-- Al