Boss AC-3 Acoustic Simulator Guitar Effect Pedal

Product ID: 57329

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  • Transforms your electric into an acoustic using BOSS COSM tech
  • Features four acoustic modes: Standard, Jumbo, Enhanced, and Piezo
  • Top and Body knobs fine-tune the virtual-body resonance
  • Built-in reverb makes for a much more spacious acoustic sound
  • Line Out for use with PA recording equipment or amplifier
  • Will not compromise your guitar's natural tone
  • Ideal for using in a band if you need to cut through the mix
  • Free 5 year warranty when registered with BOSS


For many performing musicians and their sound techs it can prove to be a little tiresome having to swap and change between an electric and acoustic guitar to provide a range of different sounds. Not anymore! With the Boss AC-3 Acoustic Simulator you can completely transform your electric guitar to sound just like an acoustic just by engaging this wonderful little stompbox.


Thanks to the innovative Boss COSM Acoustic-Modeling technology, the AC-3 can realistically simulate the sounds of various types of acoustic guitar with precision. Although it is a small, compact pedal, this stompbox features four main control dials for Level, Body, Top and Mode to optimise your sound. The Level is also accompanied by a Reverb option to give your acoustic simulation the kind of sound you would hear in an impressive room or venue. The combination of Body and Top controls allow you to cut or boost your bottom and high end tones depending on how bright or dark you want it to sound.

Perhaps the most interesting control for obtaining your ideal acoustic tone is the Mode dial. With this, you have four different acoustic tones at your service to choose from: Standard, Jumbo, Enhanced, and Piezo-equipped (for a direct Piezo sound which is perfect for cutting through a mix, especially if you play in a band).


The compact AC-3 Acoustic Simulator pedal features not just one, but two output paths. This enables you to plug your electric guitar into the "G. Amp Out" jack, as well as connecting to either a PA system, recording software or even an acoustic amplifier of your choice.

Save yourself during those live sets and recording sessions by investing in a Boss AC-3 Acoustic Simulator to accurately convert your electric guitar into an acoustic.

Model AC-3 Acoustic Simulator Guitar Effect Pedal
Dimensions (H x W x D) 55 x 70 x 125 mm
Weight 0.4kg
Nominal Input Level-20 dBu
Input Impedance1 M ohms
Nominal Output Level-20 dBu
Output Impedance1 k ohms
Recommended Load Impedance10k ohms or greater
ControlsPedal Switch, MODE Switch, BODY Knob, TOP Knob, LEVEL Knob, REVERB Knob
IndicatorCHECK Indicator (Serves also as battery check indicator)
ConnectorsINPUT Jack, G.OUT Jack, LINE OUT Jack, AC Adaptor Jack (DC 9 V)
Power SupplyDC 9 V: Dry Battery (6F22/ 9 V), AC Adaptor (PSA Series: Optional)
AccessoriesOwner's Manual, Dry Battery; 6F22/ 9 V (Carbon), Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and “Information”)
OptionsAC Adaptor PSA-Series

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