Complex sentence: It was introduced at the Spring 1976 AES Conference in Los Angeles, Alastair Heaslett and was geared towards the ultra high end studio market, and having been designed specifically as a stereo or quadrophonic (2 or 4 track) mixdown and mastering deck.
Split into simpler sentences: It was introduced at the Spring 1976 AES Conference in Los Angeles, Alastair Heaslett and was geared towards the ultra high end studio market. The original versions were designed specifically as a stereo or quadraphonic (2 or 4 track) mixdown and mastering deck.