BOSS AD-2 Acoustic Preamp Pedal – Refurbished

BOSS AD-2 Acoustic Preamp Pedal – Refurbished


The BOSS AD-2 Acoustic Preamp pedal is a simple and convenient way to elicit genuine and woody tones from your acoustic-electric instrument’s pickup system, whether live or recorded. Simply set the Acoustic Resonance control to the desired level, and you’ll notice a gain in warmth and depth that many pickup systems can’t create on their own.

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SKU: BOSAD2BU Category:
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The BOSS AD-2 Acoustic Preamp has an Acoustic Resonance effect that mimics the unique tone characteristics of an unplugged acoustic guitar. A notch filter for feedback reduction, a balanced DI output, and other stage requirements are also included.

The quacky tone and harsh response of many acoustic-electric pickup systems are easily eliminated by the BOSS AD-2 Acoustic Preamp pedal. As you adjust the Acoustic Resonance control, you’ll hear BOSS’s cutting-edge digital processing get to work evaluating the input signal from your guitar and responding much like an acoustic guitar would without an amplifier.

When creating the AD-2, BOSS gave special consideration to controlling feedback. On the pedal’s face, there is a convenient knob titled Notch that is just as easy to use as the Resonance feature. Just begin to perform. Simply turn the Notch control until feedback stops appearing when it starts to rear its ugly head. Both the ease and effectiveness of it are unmatched.


  • Acoustic-electric guitar preamp with advanced BOSS sound processing
  • Sophisticated under-the-hood processing with multiple interlocked parameters, accessible with simple stompbox controls
  • Acoustic Resonance reproduces the complex resonance characteristics of an unplugged acoustic
  • Ambience knob provides wide-ranging, studio-quality reverb optimized for acoustic guitar
  • Notch filter for instant feedback reduction
  • Normal output for an acoustic guitar amp and balanced DI output for


  • Nominal Input Level: -20 dBu
  • Input Impedance: 10 M ohms
  • Nominal Output Level: OUTPUT jack: -20 dBu / LINE OUT jack: -20 dBu
  • Output Impedance: OUTPUT jack: 1 k ohm / LINE OUT jack: 600 ohms
  • Recommended Load Impedance: OUTPUT jack: 10 k ohms or greater / LINE OUT jack: 600 ohms or greater
  • Bypass: Buffered bypass
  • Controls: Pedal switch / ACOUSTIC RESONANCE knob / AMBIENCE knob / NOTCH knob
  • Indicator: CHECK indicator (Serves also as battery check indicator)
  • Connectors: INPUT jack: 1/4-inch phone type / OUTPUT jack: 1/4-inch phone type / LINE OUT jack: 1/4-inch TRS phone type / DC IN jack
  • Power Supply: Alkaline battery (9V, 6LR61) or Carbon-zinc battery (9V, 6F22) / AC adaptor (sold separately)
  • Current Draw: 55 mA
  • Expected battery life under continuous use: Alkaline: Approx. 6 hours / * These figures will vary depending on the actual conditions of use.
  • Accessories: Owner's manual / Leaflet / Alkaline battery (9V, 6LR61)
  • Option (sold separately): AC adaptor (PSA series)
  • Width: 73 mm; 2-7/8 inches
  • Depth: 129 mm; 5-1/8 inches
  • Height: 59 mm; 2-3/8 inches
  • Weight (including battery): 450 g; 1 lb
Weight 2 lbs