What is the technical difference between CD and Super Audio CD?
As you know, the CD uses 16 bit PCM recording technology at a 44.1KHz sampling rate. The frequency response of the CD is limited to 22.05KHz and its dynamic range is limited to 96dB. The SACD format is based on DSD-recording-technology, which uses 1-bit delta-sigma modulation and a sampling frequency that is 64 times higher than that of the CD. This enables the SACD format to offer a frequency response of 100KHz and a dynamic range of 120 dB across the audible range that allows for true reproduction of original source material without the omission of any naturally occurring sounds.
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