Randy,

I agree with your consensus, a calibration to 75db is a calibration to 75db. Your SPL meter doesn't lie. Regardless of calibration, you are still not pushing the amp as much as other say it can be pushed.

I don't know much about denon's at all, can't help you there.

Perhaps you have a fellow audiophile friend locally that could do a listening test with his reciever or something.

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