According to Seymour Duncan, many active pickups have a design flaw; the circuits are made with unbalanced inputs. What does this mean for you players, according to the Seymour Duncan rep? A nice dose of extra hum. Seymour Duncan's AHB-1 Blackouts are designed with balanced inputs, and 12-14db less hum as a result. The AHB-1 Blackouts are on display in our exclusive demo video. Also seen in this video shot at Winter NAMM 2007 are Seymour Duncan's SJ5-3 bass pickups, designed especially for five-string players. Check the vid for full details.