Seymour Duncan Blackouts represent the pinnacle in active guitar pickup technology. In his relentless quest for the ultimate tone, Mick Thomson of the metal band Slipknot asked Seymour Duncan for even tighter bottom and more searing top end cut, so Seymour Duncan delivered with the EMTY, a pulverizing addition to their Blackouts line. Application: The 9-volt Seymour Duncan AHB-3 active humbucker is designed for aggressive playing styles. It"s recommended for all metal and heavy rock styles, including extreme low tunings. Complete setup: AHB-3 Blackouts humbuckers are available as Mick"s two-humbucker set including a neck and a bridge pickup. All guitar pickups come with all necessary mounting hardware, including pots, jack, and a battery clip. Guitars: Intended for all guitars with humbuckers. The blade magnets make this active pickup suitable for both humbucker and Trembucker spacings.