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 Input Level: -20 dBu

Input Impedance: 1 M ohm

Nominal Output Level: -20 dBu

Output Impedance: 1 k ohm

Recommended Load Impedance: 10 k ohms or greater

Bypass: Buffered bypass

Controls

SOUND knob
TREBLE knob
BASS knob
LEVEL knob
Pedal switch

Indicator: CHECK indicator (Used for indication of check battery)

Connectors

INPUT jack: 1/4-inch phone type
OUTPUT jack: 1/4-inch phone type
DC IN jack

Power Supply: Carbon-zinc battery (9 V, 6F22) or Alkaline battery (9 V, 6LR61)
AC adaptor (PSA series: sold separately)

Current Draw: 41 mA

Expected battery life under continuous use Carbon: Approx. 3 hours Alkaline: Approx. 9 hours
*These figures will vary depending on the actual conditions of use.

Accessories

Owner's manual
Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
Alkaline battery (9 V, 6LR61)

Options (sold separately)

AC adaptor: PSA series