Boss AD-2 Acoustic Preamp Pedal

88 out of 100. Incorporating 275+ ratings and reviews.

Gearank Recommendation

The AD-2 appeared on our recommended list for Acoustic Preamps as a Budget Option from September 2017 until September 2022.


There’s no denying Boss’ dominance in the compact pedal market, and the Boss AD-2 is an acoustic preamp that showcases their best traits – reliability, quality and affordability.

It’s housed in the company’s familiar and sturdy stompbox form factor, featuring three knobs that are easy to operate.

But don’t make the mistake of assuming that this is a simple pedal, because the Acoustic Resonance knob adjusts multiple parameters via a digital processor that results in a more natural acoustic tone.

The ambience feature is also a nice plus, adding reverb to improve the sound of your guitar.

Add to that the pedal’s Notch filtering and you have a nice acoustic preamp package that’s very reasonably priced.

The Boss AD-2 is highly recommended for those with budget constraints, and it can also be a good spare preamp for those with more expensive units.


  • Profile: Single Pedal
  • Controls: Ambience, Notch, Acoustic Resonance, Engage Footswitch
  • Input: 1 x 1/4″
  • Output: 1 x 1/4″, 1 x 1/4″ (TRS Line Out)
  • Powered By: 9V Power Supply (Sold Separately), 9V Battery
  • Dimensions: 2.3″ x 2.8″ x 5.1″
  • Weight: 1 lb.
Although this was previously on our recommended list, there are other options with higher ratings in our guide to The Best Acoustic Preamps.

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