DESC: Dolby® Digital and DTS® home theater sources deliver spine-tingling realism and high-impact, deep bass that keeps you riveted to the on-screen action. With built-in decoding for both formats, the SA-HE70 is your super-affordable ticket to all the fun and excitement! The decoding versatility doesn't stop there, though this receiver also includes Dolby Pro Logic II processing, which can transform Dolby Surround and stereo sources into realistic 5.1-channel sound.