Would be unusual. Check with a meter. You can replace the little female plugs on the cartridge end and put the right colors in place. If it really is the case that one side was wired out of phase it is just because the tech soldered on one of the channel's colors backwards as that process would come last. But you should trace everything out with a meter checking continuity and write down which color belongs where.
My tonearm must be wired out of phase
I have always had a slight channel imbalance with 2 cartridges and 2 phono stages. The right channel always played slightly louder than the left and the sound stage leaned that way also, more center and right with the left stage almost nonexistent. The meters on my monoblock amps also indicated less output on the left channel.
After switching the cartridge leads everything snapped into focus. Full soundstage, 3 dimensional, amp meters equal and test record pink noise indicates equal balance as well. My tonearm is a Basis Vector 4 with a captive cable. Somewhere in the chain the wires must be crossed...that’s all I can come up with. Anyone had this experience?
After switching the cartridge leads everything snapped into focus. Full soundstage, 3 dimensional, amp meters equal and test record pink noise indicates equal balance as well. My tonearm is a Basis Vector 4 with a captive cable. Somewhere in the chain the wires must be crossed...that’s all I can come up with. Anyone had this experience?