Boss AC-3 Acoustic Simulator Pedal

Boss AC-3 Acoustic Simulator Pedal


The BOSS AC-3 Acoustic Simulator Pedal transforms your electric guitar into simulated acoustic. The AC-3 has Standard, Jumbo, Enhanced and Piezo-equipped modes as well as a built-in reverb effect, all of which are powered by COSM modeling technology.

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SKU: BOSSAC3 Category:
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The BOSS AC-3 is a guitar effect pedal that lets you play your favorite electric guitar like an acoustic guitar. The Boss Acoustic Simulator uses COSM technology to simulate the sound of a number of high-quality acoustic guitars. Standard (regular acoustic), jumbo (large body acoustic), enhanced (responsive acoustic) and Piezo (acoustic with piezo pickup) guitars are available for simulation.

The Body and Top parameters may be used to replicate four various types of guitars, each of which can be fine-tuned to taste. There is a built-in reverb circuit. Separate outputs for guitar amps and recording or direct to a recording device allow you to adjust your output to the occasion. The BOSS AC-3 Acoustic Simulator Pedal lets you play an acoustic guitar without carrying a separate instrument.


  • Advanced modeling for authentic acoustic guitar sounds
    BOSS's COSM Acoustic-Modeling technology is beautifully showcased in the small but powerful AC-3, which simulates an acoustic guitar much more precisely and realistically than previous technology allowed. Derived from BOSS' top-of-the-line AD-8, the AC-3 simulates the sound of an acoustic guitar with incredible precision. Four simulation modes are provided: Standard, Jumbo, Enhanced, and Piezo-equipped; the latter supplies that famous "cut through the mix" direct piezo sound. Previous compact acoustic-guitar modeling-pedals were promising, but now the bar has been raised with AC-3.
  • Fine-tune controls to shape the acoustic sound you want
    The AC-3 provides Top and Body controls which allow you to shape the characteristics of the four acoustic models. Create the perfect acoustic-guitar sound quickly and easily with simple knob twists.
  • Reverb included
    Add depth and sweetness to the sound with the AC-3's built in digital reverb. It's like getting two pedals in one!
  • Versatile output paths
    Two sets of outputs are provided, allowing you to connect the AC-3 to a standard guitar amp and to a direct input device such as a PA, or a recorder.


  • Pedals: Bypass pedal
  • Switches: None
  • Controls: LEVEL knob REVERB knob; BODY knob; TOP knob; MODE knob
  • Connectors: 1 x 1/4" Guitar Input jack; 1 x 1/4" Guitar Amp Out jack; 1 x 1/4" Line Out jack
  • Effects: Acoustic guitar simulation
  • Display: Power/Battery Low LED
  • Power Supply: 1 x 9-volt battery OR optional AC adapter
  • Dimensions: 2.88 x 2.38 x 5.13" (73 x 59 x 129mm)
  • Weight: 1 lb (400 g)
Weight 3 lbs