From fat crunch to ultra high-gain distortion, the ST-2 Power Stack delivers famous BOSS distortion with a stunning amount of power that’s akin to coveted tube amps and professional amp stacks. The SOUND knob simultaneously blends gain amount and sound character, so you can quickly dial up anything from vintage crunch and punchy drive to full-assault distortion. To add further detail to your tone, simply tweak the onboard two-band EQ to taste. The ST-2 is one very unique distortion pedal, calling on BOSS’ years of amp modeling research to bring you real stack sounds in a compact stompbox.
Nominal Output Level-20 dBuOutput Impedance1 k ohmRecommended Load Impedance10 k ohm or greaterPower SupplyDC 9 V: Carbon-zinc battery (9 V, 6F22) Alkaline battery (9 V, 6LR61) AC Adaptor (optional)Current Draw36 mA (DC 9 V) * Expected battery life under continuous use: Carbon: 3 hours Alkaline: 10 hours These figures will vary depending on the actual conditions of use.AccessoriesOwner's Manual, Alkaline battery (9 V, 6LR61) OptionAC adaptor (PSA series)