You can try searching for threads regarding the 'Interface D', which was the home audio version of the Sentry VI: ( http://www.audioreview.com/cat/speakers/floorstanding-speakers/electro-voice/interface-d/prd_119470_1594crx.aspx ) Did yours come with the accessory SEQ, as originally supplied with the Interface D's? Enter these URLs, and you can download the manuals for both iterations: ( http://archives.telex.com/archives/EV/Speakers/Owners%20Manuals/Interface%20D%20Owners%20Manual.pdf ) ( http://archives.telex.com/archives/EV/Speakers/EDS/Sentry%20VI%20EDS.pdf
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