Audio Sprockets ToneDexter Acoustic Preamp Pedal (Discontinued)

92 out of 100. Incorporating 50+ ratings and reviews.
Audio Sprockets

Gearank Recommendation

It first appeared on our recommended list for Acoustic Preamp Pedals in March 2020 where it remained until April 2022 when there were more highly rated options for us to recommend.


The ToneDexter is a digital preamp for acoustic guitars with microphone modelling in an interesting feature called WaveMap which captures and applies the character of a mic to your tone.

By blending its WaveMap signal with that of your piezo pickups, it produces a more natural sound akin to a studio miked acoustic.

ToneDexter works well with all types of soundboard and under-saddle transducers – not just piezos.

It also lets you create your own WaveMaps by simply recording a couple of minutes of play, and it allows you to store up to 22 of these WaveMaps for use whenever you want to.

While it is primarily meant for acoustic guitar, its tone shaping elements allow it to work with other acoustic-electric instruments, including the mandolin, ukulele, violin, banjo, upright bass and more.

Other features include EQ, notch filter, reamping, tuner and boost.

The ToneDexter is ideal for acoustic musicians and multi-instrumentalists who want a versatile preamp capable of a wide variety of tones thanks to its WaveMap mic emulations. But be careful because you can use up a lot of time setting up and tweaking WaveMaps.

This is a great tool for connecting straight to a PA mixing consoles


  • High Headroom Digital Preamp
  • WaveMap Technology
  • Built-in EQ, Notch Filter, and Boost
  • Built-in Tuner
  • Dual Output
  • Can be used for Reamping
  • Weight: 2.85 lbs

Rating Source Highlights

Website Source *Rating Value
Sound On Sound Bob Thomas 91/100
Church Production Gary Parks 90/100
Acoustic Guitar Adam Perlmutter 90/100
American Songwriter Ed Pettersen 98/100
Eric Christopher American Strings Eric Christopher 90/100
*Displayed values are prior to adjustments made by the Gearank Algorithm when evaluating the source.
Although this was previously on our recommended list, there are other options with higher ratings in our guide to The Best Acoustic Preamps.

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