Pre-Owned Boss AD-2 Acoustic Preamp Pedal

The Pre-Owned Boss AD-2 – Natural Acoustic Tone with Studio-Quality Reverb and Feedback Control

Studio-Quality Acoustic Sound in a Compact Pedal

The Boss AD-2 brings a new level of realism and refinement to your live acoustic-electric rig. Designed specifically for gigging players, this compact pedal uses advanced processing to replicate the complex body resonance of an unplugged acoustic guitar. The result is a fuller, more natural tone that breathes life into undersaddle pickups. With simple, one-knob control over the Acoustic Resonance effect, the AD-2 offers a plug-and-play solution to capture the nuance of your acoustic tone on any stage.

Tailored Reverb for Acoustic Instruments

Once your natural tone is restored, the AD-2 takes things a step further with its Ambience control. Rather than relying on generic reverb algorithms, Boss has engineered a lush, studio-grade reverb tailored specifically for acoustic guitar. Whether you’re fingerpicking solo or strumming alongside a full band, the Ambience knob provides depth and clarity that enhances your sound without smearing your dynamics.

Pro-Level Output Options and Notch Filter

Stage versatility is built right into the AD-2’s design. With independent outputs, you can send one signal to your acoustic amp and another via the balanced DI to the front-of-house. If the venue’s PA engineer prefers to add their own effects, the onboard Ambience can be bypassed at the Line Out. And when feedback threatens to ruin the moment, the built-in notch filter offers quick, intuitive suppression with a single twist of the Notch knob.

Built for the Working Acoustic Player

The AD-2 is made for live performance, from its tough, pedalboard-friendly construction to its essential stage features. A mute function is available at the press of the footswitch—ideal for silent tuning or switching guitars mid-set. Buffered bypass ensures signal integrity through long cable runs, and the unit can run on a 9V battery or optional Boss PSA adaptor. Whether you're playing coffee shops or concert halls, the AD-2 delivers tone and flexibility in one rugged box.

Excellent Condition and Fully Functional

This pre-owned AD-2 pedal is in excellent condition, showing only light signs of use. All functions work as intended, and it includes the original alkaline 9V battery along with factory literature. Compact, intuitive, and powerful, the AD-2 is ready to bring your acoustic sound to life onstage.

Specifications

• 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 (also serves as battery check)

• 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 AC adaptor (sold separately)

• Current Draw: 65 mA

• Expected Battery Life: Approx. 5 hours (alkaline, continuous use)

• Accessories Included: Leaflet, Alkaline 9V battery

• Dimensions (W x D x H): 2-7/8" x 5-1/8" x 2-3/8"

• Weight (including battery): 15 oz

This pedal works nicely as intended and is in excellent condition, exhibiting only very gentle external wear as can be seen in photos. Original box and literature are included.