it wasn't until I had a hearing test that the source of the problem was revealed. Ages ago, in the Air Force, my left ear drum was injured in a rapid decompression incident, and as many injuries, they get worse with old age.
A lot of posters in the various sites listed hearing loss as a possible cause for the perceived channel imbalance. Always, the left channel was stronger. In my case hearing was eliminated as a cause by the Chesky disc. Some of the tunes actually started with the right channel. On several, the effect was, Trumpet and Trombone on the left, Clarinet and saxophone on the right and Drums,Bass, and banjo dead center.
Since then, I have decided some disc, a lot, are biased to the left, some aren't. Classical discs seem to be the best recorded. Although I was sort of disappointed in my recently purchased, 4 seasons / Rachel Podger. It won top awards in all the Magazines, and is a SACD.
Today my Mozart Violin Sonatas / Perlman & Barenboim was outstanding. No problems.
Like you, I will just have to live with those with the problem.
Cheers
Btw, a good way, i'm told, to verify hearing, is to sit in the sweet spot with your back to the speakers. Now your right ear is listening to the left channel. Does the dominance shift? If yes, it's your hearing. If not, the system / recording.
