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Why some CDs sound way louder than others?

Some CDs sound much louder than others so that with a kind of low setting in the volumen knob of the amp the SPL coming out of the speakers gets pretty loud. OTOH with some CDs it is really necessary to crak the volumen up to get the SPL desired. Why is this? Can some one explain me this?
tiofelon

Showing 1 response by reubent

reubent
7,090 posts
 
Does your player have HDCD decoding? If so, check one of your really loud CDs. If it has the HDCD logo on it, that my be the answer. I believe HDCD is recorded several db louder than a standard CD.

If not HDCD, then the previously posted answers are likely correct....
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