Nelson Pass developed STASIS Power for Threshold from the 1990s, and licensed the tech to Nakamishi. Those vintage amps still command a good price as the tech is well proven. Class A voltage to sweeten the sound, class B or now Class D current drive. Great marriage of SQ while having efficient grunt. Clearly Class D is significantly more efficient than Class B. Evolutionary, not revolutionary.
Having patents does not necessarily mean true breakthru, it just means you do things slightly differently than what has been patened before. Many ways to skin a cat.
Having patents does not necessarily mean true breakthru, it just means you do things slightly differently than what has been patened before. Many ways to skin a cat.