Zoom A3 Pre-Amp & Effects Pedal for Acoustic Guitar

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About Zoom A3 Pre-Amp

Pickup systems are the most popular option for amplifying acoustic guitars on stage, however most are unable to capture the unique tone of each instrument. As a result, different guitars can take on similar flat, electric-acoustic characteristics and they all sound the same when amplified or plugged into a PA.

Zoom's A3 is the first pedal of its kind. It allows players to restore the natural tone of their acoustic guitars while continuing to use pickup systems for amplification. In addition to being a powerful acoustic preamp, the A3 offers unrivaled acoustic remodeling features, amazing acoustic effects and much more for crafting acoustic guitar sounds for both live and studio applications.

Zoom A3 Pre-Amp Features

  • Pre-amp/effects pedal for acoustic guitar
  • Easy-to-use interface includes LCD, footswitches, analog-style cursor keys/parameter knobs and LED indicators
  • Remodeling presets for 16 body types and 28 popular acoustic guitar models
  • 40 effects can be used in any combination
  • Use two effects and one acoustic guitar model simultaneously
  • Acoustic guitar pre-amp with Mic and Pickup mixing options, 3-band EQ, Balance control and super-low noise design
  • Anti-feedback footswitch filters up to three frequency ranges at once
  • Clean Boost footswitch for up to 12dB of additional amplification
  • Create and store up to 20 original patches
  • Integrated auto-chromatic tuner
  • Tap tempo function
  • Direct box capability with balanced XLR output
  • Ground switch eliminates ground loop hum
  • Dedicated pickup input with pickup compensation switch (Flat, Magnetic, Piezo)
  • XLR-1/4-inch combination Mic/Line input with phantom power
  • 1/4-inch stereo/headphone output
  • Up to eight hours of operation using four AA batteries (included)

Zoom A3 Pre-Amp Specifications

Effect Types
Model Types
Simultaneous Effects
2 effects + 1 model
Patch Memory
Sampling Frequency
A/D Conversion
24bit, 128times over-sampling
D/A Conversion
24bit, 128times over-sampling
Signal Processing
32bit floating point and 32bit fixed point
Frequency Response
40Hz to 20kHz (+1dB / -3dB) (10kOhm load)
Pickup IN: 1/4'' phone jack
Rated input level: -20dBm
Input impedance: 1MOhm
MIC IN: XLR-1/4'' phone jack
Rated input level: -20dBm
Input impedance: 1kOhm
R: 1/4'' phone jack
Maximum output level: +5dBm (Output load impedance 10kOhm or higher)
1/4'' stereo phone jack (LINE / PHONES)
Maximum output level: [LINE] +5dBm (Output load impedance: 10kOhm or higher), [PHONES] 5.7mW + 5.7mW into 32Ohm load
BALANCED OUT: Output impedance: 100Ohm(HOT-GND, COLD-GND), 200Ohm(HOT-COLD)
GND LIFT(Switch selectable)
Noise Floor
Power AC adapter
DC9V / Center negative / 500mA (ZOOM AD-16)
AA/LR6 battery x 4
Battery Life: 8 hours (with alkaline batteries)
Firmware Update
160.3x108x54.9 mm / 6.31x4.25x2.16"
630g / 22.22 oz
Mfr #
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