Boss Acoustic Preamp

SKU: BSAD2 MFR: AD-2
$142.99
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Key Features

  • Enhance your acoustic tone with the BOSS AD-2 acoustic preamp pedal for studio-quality sound.
  • Achieve natural acoustic resonance using this preamp, restoring warmth often lost in pickups.
  • Craft immersive soundscapes with the ambience effect, adding depth to your acoustic guitar.
  • Eliminate unwanted feedback with the notch filter, ensuring a clean, professional performance.
  • Enjoy versatile connectivity with output and line out jacks, perfect for amps or recording.
  • Compact and durable, this preamp pedal is built for reliable performance on stage or in studio.
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Special Order?Estimated to Ship: 08/30/2025
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Boss Acoustic Preamp 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 (Serves also as battery check indicator)

  • Connectors

    INPUT jack: 1/4" phone type
    OUTPUT jack: 1/4" phone type
    LINE OUT jack: 1/4" 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 (continuous use)

    Alkaline: Approx. 6 hours
    These figures will vary depending on the actual conditions of use.

  • Accessories

    Owner's manual
    Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
    Alkaline battery (9V, 6LR61)

  • Option (sold separately)

    AC adaptor (PSA series)

  • Dimensions (W x D x H)

    73mm x 129mm x 59mm (2-7/8 x 5-1/8 x 2-3/8")

  • Weight (Incl. Battery)

    450 g (1 lbs)

  • UPC Code

    761294509821

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Designed For Use With:

  • Guitar Pedal

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

About Boss Acoustic Preamp

Be prepared to experience the natural, studio-quality sound of your acoustic-electric guitar on any stage with the AD-2 Acoustic Preamp. This compact, high-quality pedal is powered by an advanced BOSS sound engine, offering sophisticated processing capabilities that defy its small size and intuitive interface.

The AD-2 Acoustic Preamp is designed to reproduce the complex resonance characteristics of your unplugged tone, thanks to its innovative Acoustic Resonance feature. This feature analyzes the input signal as you play, employing advanced processing to beautifully recreate your guitar's naturally evolving tone. With a simple twist of the one-knob control, you can adjust multiple parameters within the AD-2, achieving the perfect tonal balance for any style, from delicate fingerpicking to intense strumming.

This versatile acoustic preamp also offers an Ambience effect, allowing you to dial in pro-level reverberation that's perfectly optimized for acoustic guitar. Unlike standard reverbs that can cloud your guitar's sound, the optimized BOSS algorithms in the AD-2 produce lush, deep ambience that perfectly complements your instrument's voice.

The AD-2 Acoustic Preamp is also equipped with essential stage tools such as a notch filter for feedback control, a balanced DI out for direct connection to a PA, and a convenient mute function for tuning and switching guitars. It features two independent outputs for performance flexibility. Connect the Output jack to your acoustic guitar amp or stage monitor, and use the Line Out to send a balanced signal direct to the PA mixer.

For those who encounter low-frequency feedback issues on stage, the AD-2's notch filter has you covered. As soon as you hear that familiar rumble, just turn the Notch knob until it goes away. It's that easy!

In conclusion, the AD-2 Acoustic Preamp is a durable, portable, and innovative solution for musicians seeking to enhance their acoustic guitar's sound with professional-grade reverb and resonance.

Boss Acoustic Preamp Features

  • 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 direct PA connection
  • Sound mute function for switching guitars and tuning on stage

Warranty Information

This product has a limited warranty of 60 months.

Product Documents

User Manual

Key Features

  • Enhance your acoustic tone with the BOSS AD-2 acoustic preamp pedal for studio-quality sound.
  • Achieve natural acoustic resonance using this preamp, restoring warmth often lost in pickups.
  • Craft immersive soundscapes with the ambience effect, adding depth to your acoustic guitar.
  • Eliminate unwanted feedback with the notch filter, ensuring a clean, professional performance.
  • Enjoy versatile connectivity with output and line out jacks, perfect for amps or recording.
  • Compact and durable, this preamp pedal is built for reliable performance on stage or in studio.

What's in the box:

  • Acoustic Preamp
  • Owner's Manual
  • Leaflet
  • Alkaline Battery
  • BOSS 5 Year Warranty