In Reply to: Very rare that absolute phase is audible with commercial recordings posted by Richard BassNut Greene on August 19, 2005 at 07:13:01:
This is from a post on ProSound Web by David Schober."For those of you old enough to remember (like me), the old direct-to-disk records that Doug Sax's Sheffield Labs made had an interesting note somewhere in the liner notes. It read something like, "Audiophiles note: for maximum results, please switch the polarity of your speakers when playing this album." I remember reading that when I lived back in Texas wondering why they'd say something like that."
"Years later when working with Doug, I asked him about it. He explained to me that the cutting system he had in those days produced a reversed polarity LP. I don't remember the exact reason, but fixing it would have required another amp in the circuit. This was something he was unwilling to do as he felt the sonic detriment, if discernible on home systems, was a better compromise than the extra amp. I don't know why he couldn't just rewire the output stage. He didn't seem to be putting one over on me, but I was still wet behind the ears back then...."
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David Schober
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