¡Obtenga asesoría en español!  Llámenos hoy a (800) 222-4701
(800) 222-4700 Talk to an expert!
Loading Cart
Your Cart Is Empty

See what's new at Sweetwater.

My Cart this.cartQty

Audio Sprockets ToneDexter II Acoustic Instrument Preamp Pedal , $649.00 - Add to Cart Skip to Product Information

Audio Sprockets ToneDexter II Acoustic Instrument Preamp Pedal

Acoustic Stringed Instrument Preamplifier with 3 Reverbs, 32 WaveMap Slots, Stereo-capable FX Loop, Boost, and Tuner
Audio Sprockets ToneDexter II Acoustic Instrument Preamp Pedal
Audio Sprockets ToneDexter II Acoustic Instrument Preamp Pedal

In Stock!

(Hurry, limited quantity available)

This item is not available for local pick-up. Place your order now and your gear will be on its way to you!

Ask An Expert Our Expertly trained Sales Engineers are ready to help! What is a Sales Engineer?
Sweetwater Gear Exchange

Have one to sell?
Check out Sweetwater's Gear Exchange!
Learn More

Audio Sprockets ToneDexter II Acoustic Instrument Preamp Pedal
In Stock!

(Hurry, limited quantity available)

This item is not available for local pick-up. Place your order now and your gear will be on its way to you!

Bring Your Plugged-in Tone to Life

This article was Written By

Our Product Research Team

Get to know them!

Sweetwater knows that getting the natural tone of an acoustic instrument to translate in a live environment can be a challenge. That’s where Audio Sprockets’ ToneDexter II comes in. This clever acoustic instrument preamp pedal uses proprietary WaveMap technology to take your plugged-in piezo sound to the next level of realism. Essentially, WaveMaps take the character of your favorite studio microphones and blend them into the signal from your piezo pickup, giving you an exceptionally vivid sound on any stage. Now in its second iteration, ToneDexter II comes with a trio of onboard reverb settings, an updated display screen, 32 preset slots for WaveMaps, USB preset management, a stereo-capable effects loop, and an updated EQ section. It all adds up to the ToneDexter II equating to an indispensable tool for gigging — add one to your rig today and experience the difference for yourself.

Upgraded with three reverb voices

Looking to elevate your acoustic with a wider, more expansive sound? You’re in luck — ToneDexter II boasts built-in reverb with Plate, Hall, and Room settings to explore. Moreover, each of these reverb settings boasts two distinct voices to choose from, effectively granting you a grand total of six reverbs! Whether you’re after a subtle reflection or a cavernous echo, ToneDexter II has you covered.

V4 update

With a single click from the management tool, your ToneDexter II can be updated with the free V4 software upgrade. Among a trove of top-notch enhancements and additions, the main upgrades featured in the V4 update include transparent compression with smart one-knob control and a new IR training algorithm with higher resolution and sharper focus than previous iterations.

What’s new in version two?

With production of the original ToneDexter halted in 2020 due to the COVID-19 pandemic, the innovative minds at Audio Sprockets sought to greatly enhance the design. What resulted was no mere minor update. In fact, ToneDexter II boasts many new features and improvements. First and foremost, it now includes a new color screen with context-sensitive controls and labels. Next, 10 more preset slots were added, bringing the total up to 32 preset slots that store and recall all parameters. You can also manage your presets via USB! The stereo-capable effects loop now comes with dedicated input and output jacks for further convenience. The final major update is the EQ, complete with a parametric mid boost/cut and a selection of highpass filters.

Meanwhile, by using Record/Playback Mode, you can record your instrument for up to 90 seconds and then play it back via a loop. This functionality is useful for making tone shaping or WaveMap adjustments while hearing just the PA or amp, without the direct sound radiating from your instrument. The mode works for single or dual source configurations, with full control of all parameters including blend during playback.

Note: Record/Playback mode is not a substitute for a performance looper. Seamless loops and layering of live sound with recorded material are not possible. Contact your Sweetwater Sales Engineer with any questions.

Make your signal come alive with WaveMaps

Piezo pickups get pretty close to the real thing. And with ToneDexter II’s WaveMaps, your signal can sound more natural than ever before. So, how do WaveMaps work? Simply connect your stringed instrument’s piezo output to the ToneDexter II’s 1/4-inch input. Then, plug your favorite studio microphone into the XLR input, mic up your instrument, and start playing. ToneDexter II automatically modulates the direct signal to best match the microphone signal. Once you’re satisfied your direct-in tone sounds perfectly natural, save your new custom WaveMap into one of the 32 user preset slots for later recall.

Audio Sprockets ToneDexter II Features:

  • Full-color display enables context-sensitive controls and labels
  • 32 preset slots store and recall every parameter, including input and output levels
  • Stereo-capable effects loop effortlessly incorporates your favorite stompboxes
  • Onboard reverb to impart a touch of space to your sound, including Plate, Hall, and Room settings
  • Boost function heats up choice licks and solos with an additional 11dB
  • Overhauled EQ capabilities give you more control over your sound
  • Record/Playback mode enables you to record your instrument for up to 90 sec. and play it back via loop
  • Mute switch activates an ultra-accurate tuner
  • Character control makes your WaveMaps even punchier
  • 1/4-in. and XLR DI output suit any gigging requirement
  • Compatible with most active and passive piezo pickups

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.