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 ahendler

Several reasons
1) Level that the CD is mastered at. This can be all over the place. There is no satandard
2) Compression levels. Highly compressed material will sound louder than non compressed material
3) The type of music