• ST-2 delivers the playing feel and power that are hallmarks of stack amps
• ST-2 lets you enjoy a rich, clean tone when playing soft, and smoothly transition into a fat crunch
• The SOUND knob allows you to simply set the tone type you're looking for
• Two-band EQ with dedicated BASS and TREBLE knobs
• World-famous for great sound as well as road-tough construction

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.

Original distortion sound reminiscent of tube-based stack amplifiers
Provides a wide range of tones, from vintage crunch to ultra high-gain modern distortion
Faithful and accurate response to picking nuances and volume changes
SOUND knob controls both gain level and sound character
Two-band EQ with dedicated BASS and TREBLE knobs
Road-tough BOSS construction

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 ohm or greater
Power Supply
DC 9 V: Carbon-zinc battery (9 V, 6F22)
Alkaline battery (9 V, 6LR61)
AC Adaptor (optional)
Current Draw
36 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.
Accessories
Owner's Manual, Alkaline battery (9 V, 6LR61)
Option
AC adaptor (PSA series)
Size and Weight (incl. battery)
Width
73 mm
2-7/8 inches
Depth
129 mm
5-1/8 inches
Height
59 mm
2-3/8 inches
Weight
440 g
1 lbs
1 lbs.
440 g
1 lbs.
Owner's Manual
Dry Batteries (Alkaline: LR6 (AA) type) x 6
Options
AC Adaptor: BOSS PSA series
Foot Switch: BOSS FS-5U
Size and Weight ( incl. batteries )
Width
384 mm
15-1/8 inches
Depth
225 mm
8-7/8 inches
Height
78 mm
3-1/8 inches
Weight
3.2 kg
7 lbs.