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.