The Blackstar FS-12 is a multi-function footcontroller made by Blackstar for its ID:CORE 100 and ID:CORE 150 amplifiers. From the floor, it gives a player access to all 36 patches of those amps, and its large, clear dot matrix display shows the current patch details alongside a fully chromatic tuner, so patch changes and tuning both happen without bending over the amp1.
What it does
The FS-12's job is to put the ID:CORE 100 and ID:CORE 150's main functions underfoot. RockBoard's PedalPedia describes it as "a multi-function footcontroller in a compact, low profile, durable aluminium body," and its headline feature is patch access: all 36 patches of either amp can be reached from the footcontroller rather than from the amp's front panel1.
The display carries the rest of the work. RockBoard's PedalPedia says "The large, clear dot matrix display ensures easy visibility for the fully chromatic tuner and current patch details," which means the footcontroller doubles as a tuner readout and a patch indicator during a set1.
Build and circuit
The FS-12 is a digital circuit in a compact, low profile aluminum body, built to sit on the floor and take being stood on1.
Questions
What amps does the Blackstar FS-12 work with?
Blackstar lists the FS-12 as a footcontroller for the ID:CORE 100 and ID:CORE 150 amplifiers. Its main stated purpose is to give a player access to all 36 patches of those amps from the floor, with a dot matrix display showing the current patch details and a fully chromatic tuner.
Does the FS-12 have a tuner?
Yes. The FS-12 has a large, clear dot matrix display that Blackstar says ensures easy visibility for the fully chromatic tuner and the current patch details, so you can tune and see which patch you are on without leaving the footcontroller.
Sources (1)
- FS-12 Footswitch by Blackstar, RockBoard (rockboard.de), 2026

