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  • Pre/Post DI
  • Unbalanced output can drive a power amp
  • AGS circuitry
  • Cut and boost of treble, mid and bass frequencies
  • Fully sweepable midrange frequencies
  • Powered by two nine volt batteries, phantom power or optional universal power supply
  • Ground lift switch
  • Heavy Duty steel construction
  • Inputs: One 1/4? jack
  • Outputs: One 1/4? jack, One XLR (nominal output – 14 dBu balanced)
  • World’s first compact pedal with true Polyphonic Octave effects
  • New Drive mode adds distortion to octave notes for a fatter, more aggressive tone
  • Includes the original OC-2 mode, capable of producing notes one and two octaves down
  • Poly Octave effect adjustable to play within a specific note range
  • Bass input for adapting octave sound to bass guitars

Hartke Bass Attack 2 Preamp/Direct Box Features:

  • Bass preamp/direct box with 2-band EQ and overdrive
  • Shape circuit activates a preset EQ curve, customizable Shape Frequency and Amount knobs
  • Bass and Treble knobs with Contour EQ switch effortlessly mold your sound
  • Drive knob with Mix control dials in the perfect amount of warmth and crunch
  • XLR direct output with Pre/Post and Ground-lift switch interfaces directly with a console
  • 1/4" parallel and effect outputs for passing dry signal and connecting to your amplifier
  • Powered by 2 AA batteries, AC adapter (sold separately), or 48-volt phantom power
  • Rugged zinc die-cast stompbox-style design


  • Compact dual-channel bass preamp pedal
  • Clean and distorted channels
  • Defeatable and adjustable noise gate
  • XLR and 1/4" outputs


  • CHT Constant Headroom Technology for clear, clean performance
  • True bypass
  • 10 gain-reduction status LEDs
  • Attack, release, ratio, input, and output controls
  • Lightweight, tough aluminum housing
  • Pedalboard-friendly footprint