Boss ST-2 Power Stack Overdrive Guitar Effect Pedal (ST2)

RM550.00

British Stack Amplifier Tone — Delivers the character of classic British stack amplifiers with COSM processing, covering sounds from vintage crunch to modern high-gain distortion.
Wide Gain Range — Adapts to different playing styles with dedicated Sound, Level, Bass, and Treble controls, providing precise adjustment of gain and tonal balance.
Amp-Like Dynamic Response — Preserves playing dynamics and note definition, responding naturally to picking intensity and guitar volume adjustments across the gain range.
Flexible Tone Shaping — Refines low and high frequencies with active Bass and Treble EQ controls, allowing accurate sound adjustment for different guitars and amplifiers.
Pedalboard-Ready Design — Integrates easily into live and studio setups with buffered bypass, mono input/output, and operation via a 9V battery or optional PSA-series AC adaptor.

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Authentic Stack Amp Sounds from a Stompbox

The ST-2 Power Stack delivers fat, powerful tones inspired by classic tube-based stack amps. The innovative Sound knob offers immense tonal range in a single control, letting you dial in everything from mild drive to full-assault distortion. To fine-tune your overall sound, simply tweak the onboard two-band EQ to taste. The ST-2 is one potent pedal, calling on decades of BOSS amp modeling research to bring you many coveted rock sounds in a single stompbox.

Versatile distortion sounds reminiscent of tube-based stack amplifiers
Provides a wide range of tones, from vintage crunch to modern high-gain distortion
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

Feel the Power

The ST-2 dishes up the famous feel and power of a raging stack, backed by extensive BOSS analysis of the characteristics of benchmark amp designs. Just like the real deal, the sound naturally responds to picking nuances and volume changes on your guitar. But emulation is only the beginning, as the versatile ST-2 gives you a ton of creative range with a few simple controls.

Secret Sauce

The ST-2 puts an expressive distortion spectrum under your fingers without the punishing volume of a cranked stack amp. The Sound knob is uniquely BOSS, adjusting the gain and sound character at one time for fast tone shaping. Many musical colors are available with a twist, from mild crunch to earth-shaking gain and everything in between.

Touch-Responsive Tones for Every Style

Real stack amps are loved for their dynamic power, and the ST-2 captures this experience. Back off your volume knob and play soft for a rich, clean tone. Then smoothly transition into fat crunch as you wind up the knob and play harder—great for songs that require dramatic tone shifts. Classic rock tones are here as well, filled with punch and crisp overtones. Maxing the Sound knob puts you into ultra-heavy territory, providing extreme gain with a rich low end and a sharp edge to cut through the mix.

Specifications

Feature	Details
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	Alkaline battery (9 V, 6LR61) AC adaptor (PSA series: sold separately)
Current Draw	65 mA
Expected battery life under continuous use	Alkaline: Approx. 5.5 hours * These figures will vary depending on the actual conditions of use.
Accessories	Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and “Information”) Alkaline battery (9 V, 6LR61)
Options (sold separately)	AC adaptor: PSA series