Boss ML-2 Metal Core Effect Pedal Overview:

Extreme Metal in a Compact Pedal
With its extreme gain, the ML-2 is the most potent and heavy distortion pedal ever created by BOSS. It easily delivers massive distortion and gain with heavy lows for playing Nu Metal, Grind Core, Industrial, Hard Core, or any genre that requires crushing sound. The ML-2’s ferocious and biting tone will complement and cut through any blast beats your rhythm section can create.

• Ultra-heavy distortion with sharp-edged attack for crushing metal riffs
  
• LOW control for heavy, low frequency sound a la 7-string guitar or dropped tuning
  
• HIGH control for screaming, metallic tone
  
• Road-tough BOSS metal construction
  
• BOSS five-year warranty

Specifications:

• 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:
  • Pedal switch
    
  • LEVEL knob
    
  • LOW knob
    
  • HIGH knob
    
  • DIST knob
• Indicator: CHECK indicator (Serves also as battery check indicator)
• Connectors:
  • INPUT jack
    
  • OUTPUT jack
    
  • AC adaptor jack (DC 9 V)
• Power Supply:
  • Alkaline battery (9V, 6LR61)
    
  • AC adaptor (PSA series: sold separately)
• Current Draw: 60 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 (9V, 6LR61)
• Options (sold separately): AC adaptor: PSA series

Size and Weight

• Width
  • 73 mm
    
  • 2-7/8 inches
• Depth
  • 129 mm
    
  • 5-1/8 inches
• Height
  • 59 mm
    
  • 2-3/8 inches
• Weight (including battery)
  • 420 g
    
  • 15 oz