1、Added "SPDIF SENSE" option in the menu. Users can choose the appropriate value according to their own needs. When there is no sound from the optical input, increase this value to match the optical output device with larger clock jitter (eg TV/game console).
2、The SW output is properly mixed with R-ch and L-ch issue.
3、Optimized the volume curve.
4、Added "SUB OFF" option. This can be selected when a powered subwoofer is not connected.
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