Dave, my attempt at humor/sarcasm was missed: I didn't say -30 on the volume control, I said 30dB. Since the noise floor in even a quiet room at home is over 30dB, the sound would be inaudible and your problem would be solved.

A less drastic suggestion that I mentioned is seeing if applying a little upper midrange/lower treble equalization to just the offensive discs would help. Your 1909 has a manual equalizer which can be used as an alternative to(not a modification of) the Audyssey equalization. One of the available frequencies is 4KHz, so you might try 4-5dB of cut there and select the manual equalizer for those discs.

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Enjoy the music, not the equipment.