Pioneers of the industry no longer associated with the brands that put them on the map could be a stand-alone community topic. Dan D’Agostino comes to mind. Urban lore is he was unceremoniously booted out of Krell. Whatever the reality he has of course moved on establish Dan D’Agostino Master Audio Systems which has a real dealer network and continues the purist high-end audio only design and implementation philosophy Krell in 2021 has abandoned. Today I think of Krell as more home theater oriented and have lost interest in the brand. Sometimes pioneers like Levinson and D’Agostino must cut ties with the brands they founded to pursue their original vision.