Seymour Duncan ASB-BO-5 Blackouts Bass Pickup Set Black - 11407-12 The Seymour DuncanASB-BO Blackouts for 5-string bass pickups are voiced for aggressive bass playing. Metal, punk, and heavy rock players love them. You will get all the tones and power you need without EQ'ing and boosting. The Seymour Duncan ASB-BO Blackouts have deep bass and great dynamic range compared with traditional active bass pickups. This Blackouts for bass neck pickup is a direct repacement for active-equipped 5-string basses and contains all mounting harware- pots, jack, battery clip.