BOSS ST-2 Power Stack Distortion Pedal with 2-Band EQ

BOSS ST-2 Power Stack Distortion Pedal

The BOSS ST-2 Power Stack Distortion Pedal delivers drive tones modeled around the response of tube-based stack amplifiers, ranging from mild crunch to aggressive high-gain distortion. Its Sound control adjusts gain and tonal character together, while dedicated Bass and Treble controls provide straightforward two-band equalization for matching different guitars and amplifiers.

Designed for rock, hard rock, metal, and other gain-focused guitar rigs, the ST-2 responds dynamically to picking strength and guitar volume adjustments. Players can reduce their instrument volume for cleaner passages, then increase level and attack for heavier saturation. The compact format makes this stack-style guitar distortion pedal easy to integrate into conventional pedalboards.

The ST-2 uses buffered bypass and standard 1/4" mono input and output connections. It operates from an included 9V alkaline battery or an optional BOSS PSA-series AC adapter. BOSS specifies approximately 5.5 hours of continuous alkaline battery life, a 65 mA current draw, and a five-year manufacturer warranty.

Key Features

• Stack-Inspired Distortion: Produces tones ranging from vintage-style crunch to modern high-gain distortion.
• Dynamic Response: Reacts to picking intensity and guitar volume changes for expressive gain control.
• Sound Control: Adjusts gain level and overall distortion character simultaneously for fast tone shaping.
• Two-Band EQ: Dedicated Bass and Treble controls help tailor the pedal to different instruments and amplifiers.
• Level Control: Sets the overall output level for balancing bypassed and effected signals.
• Buffered Bypass: Maintains signal integrity through conventional pedalboard and cable runs.
• Battery or Adapter Power: Runs from an included 9V alkaline battery or optional PSA-series AC adapter.

Technical Specifications

• Product Type: Distortion effects pedal
• Model: ST-2
• Controls: Sound, Treble, Bass, Level, pedal switch
• Indicator: Check indicator with battery-status indication
• Bypass: Buffered bypass
• Nominal Input Level: -20 dBu
• Input Impedance: 1 megohm
• Nominal Output Level: -20 dBu
• Output Impedance: 1 kilohm
• Recommended Load Impedance: 10 kilohms or greater
• Input: 1 x 1/4" phone jack
• Output: 1 x 1/4" phone jack
• Power Connection: DC input
• Battery Power: 1 x 9V alkaline battery, 6LR61
• AC Power: Optional BOSS PSA-series adapter
• Current Draw: 65 mA
• Expected Alkaline Battery Life: Approximately 5.5 hours
• Dimensions (W x D x H): 2.9 x 5.1 x 2.4 in
• Weight: 0.9 lb including battery
• Package Dimensions (L x W x H): 6 x 3.8 x 2.5 in
• Package Weight: 1.2 lb
• Manufacturer Warranty: 5 years

What's In the Box

• BOSS ST-2 Power Stack Distortion Pedal
• 9V alkaline battery
• Safety, important notes, and information leaflet