Deltalab ADM256 Effectron Delay Flange Rack Effects UnitNotes Cosmetically clean and all features function properly. There is a persistent hi pitched whine present that changes frequency as knobs are turned. This isn't easy to hear but it is there. A Deltalab ADM256 Effectron Delay Flange Rack Effects Unit in Fair condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any