The A3 provides remodeling presets for 16 different body types/shapes and 28 world-renowned acoustic guitars, allowing you not only to restore the true sound of your guitar but to simulate the tonal characteristics of other instruments as well. In addition, there are 40 onboard DSP effects, each carefully crafted to enrich the tone of acoustic guitar. For ease of use, these are organized into the following categories:

Body and model types 
You'll find many popular acoustic guitar bodies and types here, from Dreadnought to Jumbo, from Round Shoulder to Square Shoulder, and from Single Cutaway to Resonator. Also included are emulations of Martin 00 and 000 models, resin-body guitars such as the Ovation Adamas, and both twelve-string and nylon-strings—even upright bass. All A3 models accurately recreate the tonal differences between instruments, down to the bracing and type of wood from which they are made.

Dynamics Effects / Filters 
Shape and tame your sound with 10 compressors, equalizers, exciters, and wah effects, along with Zoom's Noise Reduction (ZNR) algorithm, designed to remove noise during pauses while still maintaining your instrument's natural tone. 

Modulation
Add the shimmering silkiness of phasing, flanging, chorus, tremolo, vibrato, detuning, and pitch shifting with these 9 effects.  

Delay
The A3 provides 5 different kinds of delays, including reverse, multi-tap, and self-oscillating delays. 

Reverb 
A dozen adjustable rooms, halls, arenas, plates, and springs that allow you to add depth and spaciousness to your sound. The A3's cutting-edge DSP microchip performs 32-bit floating-point calculations, giving it the ability to create sophisticated studio-quality effects such as the realistic simulations found here.  

Mic 
Three different microphone models: emulations of the popular Shure SM57, AKG C414, and Neumann U87.