Introducing the new flagship receiver of the Elite line: the SC-57. It wouldn’t be an overstatement to call the new Elite SC-57 one of the most revolutionary receivers ever produced. Or that the industry has ever seen. Until now digital amplification – categorized as Class-D devices - have received little or no respect from a cautious and hesitant industry. Unable to conquer the challenges of "digital", A/V receiver manufacturers have sought refuge in the comfort zone of analog Class-A/B amplifiers. One problem with that is analog amplifiers have had essentially the same design for the last fifty years, leaving little room for further performance enhancements. Another is the multi-channel soundtracks now available on Blu-ray Disc simply cannot be maximized or enjoyed to their full potential through conventional analog A/B amplification. Pioneer understood early the massive power output potential of Class-D amplification, and made the bold decision to produce multi-channel amplifiers that more than rise to the occasion of bringing the new audio dimension that Blu-ray Disc provides to the home theater enthusiast. The Elite SC-57 is the third generation of Class-D amplifiers for Pioneer, and as such we’ve designated it in a class all its own: Class D3.