Behringer ADI21 V-Tone Acoustic Driver DI Pedal

Acoustic Amp Modeler/Direct Recording Preamp/DI Box with 3-band EQ and Ground Lift Switch
Behringer ADI21 V-Tone Acoustic Driver DI Pedal image 1
Behringer ADI21 V-Tone Acoustic Driver DI Pedal image 1
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Behringer ADI21 V-Tone Acoustic Driver DI Pedal
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More Than Just a DI Box!

The Behringer V-Tone ADI21 acoustic amp modeler is essential for your piezo-equipped acoustic-electric guitar. Replacing your artificial, lifeless sound with one that is rich, loud, and electrifying, the ADI21 combines the features of an active DI box with proprietary microphone/tube emulation circuitry. The result is a warm, natural-sounding acoustic guitar tone that will leave you satisfied. Make no mistake, the ADI21 will embue your amplified acoustic guitar with enormous tonal versatility with its 3-band EQ and flexible blend control. The Behringer V-Tone ADI21 acoustic amp modeler also functions as a capable active DI box. Got questions? Sweetwater Sales Engineers receive ongoing product training on nearly everything we sell. Give us a call, we'll be glad to help you out!

Behringer V-Tone ADI21 Acoustic Amp Modeler at a Glance:
  • Microphone/tube emulation delivers excellent, natural sound
  • Onboard EQ shapes your tone and conquers feedback
  • Behringer - a brief history
Microphone/tube emulation delivers excellent, natural sound

Sometimes piezo pickups sound artificial and overly bright. By combining the features of an active DI with proprietary microphone/tube emulation circuitry, the Behringer V-Tone ADI21 acoustic amp modeler restores warmth and low-end response to your tone, resulting in a rich, natural sound. You can also use the ADI21's blend control to mix the amount of modeled tone with your instrument's normal output, granting you enormous tonal versatility.

Onboard EQ shapes your tone and conquers feedback

By using the V-Tone ADI21's onboard 3-band EQ, you can effectively eliminate the harsh harmonics of piezo pickups. The EQ's sweepable mids grant you even more tone-sculpting power. You can also adjust the ADI21's EQ in order to reduce the inevitable feedback that occurs when you amplify an acoustic guitar onstage. Complete with a ground lift switch, the ADI21 is an onstage lifesaver!

Behringer - a brief history

Uli Behringer showed an interest in music technology design at a young age, building his own synthesizer by the age of 16. In 1982, Uli began studying sound engineering and classical piano at the Robert Schumann conservatory in Dusseldorf, Germany. Uli's defining moment came when he was repairing a signal processor made by a high-end manufacturer. Despite the processor's expensive price tag, Uli realized that its internal components could be bought for a fraction of the cost. Being a strapped-for-cash student, Uli began building his own signal processors. Before he knew it, other students began requesting equipment from him. In 1989, after being bombarded with more orders than he could handle by himself, Uli created Behringer, Inc.

Behringer V-Tone ADI21 Acoustic Amp Modeler Features:
  • Authentic microphone/tube emulation modeling circuitry provides natural warmth and presence
  • Ultra-musical 3-band EQ with sweepable mids for tone-sculpting and feedback control
  • Super-high impedance to retain maximum signal integrity and dynamics
  • Dual DI mode lets you bypass tube/microphone emulation for standard active DI functionality
  • Ground lift switch eliminates typical ground loop problems
Bring your acoustic-electric guitar tone to life with the Behringer V-Tone ADI21 acoustic amp modeler!

Tech Specs

Pedal Type Acoustic Amp Modeler/Preamp/DI Box
Inputs 1 x 1/4"
Outputs 1 x 1/4"
Batteries 1 x 9V
Height 5"
Width 3.9"
Depth 2"
Weight 1.01 lbs.
Manufacturer Part Number ADI21

Customer Reviews

Based on 13 reviews
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Just exactly what we needed. Well Constructed.

This acoustic driver works great with a wide range of passive pickup instruments. It seems to be extremely well constructed and engineered for the price. I initially bought it to amplify a banjo but have since used it for a mandolin and a bouzouki. It allows you to not only amplify the signal but to also adjust the sound to replicate the natural sound of the instrument. I have a Fishman that I originally bought to use and paid over twice as much for and it holds no comparison what so ever to the ADI21. I recommend it highly and several of my friends have purchased this driver after hearing it.
Music background: Sound Guy

ADI21 rounds out the trio

Thanks again Mark Chapman. This little gem fills out the trio of DI21 pedals. First I started with the BDI21. Then the GDI21, both of these pedals do everything Behringer claimed them to be capable off and then some. Now the ADI21 is in my arsenal. Besides electric guitar and bass, I also gig with an accustic (Mitchell 12 string/Luna Orical for the six string) Nether high end instruments-Don't knock them till you try them. I've never had a true accustic reproduction without just using a good quality mic. Now with the ADI21 and on board electronics in the accustic guitars problem solved. The sweepable mids really make the magic come alive, ie. feedback control/tone shapping need I say more? 1/4" and XLR outputs Flexability to the max. Price is very friendly. If you play accustic on stage you need this problem solver.
Music background: 50+ years playing on stage

Great little DI for the money

This does exactly what it says. Bought this beacause i was going to play at a church that didnt have DI's, so i did some quick reasearch and of course i was on a tight budget. I was not disappointed. This thing sounded huge, smoothed out that piezo harshness. I have owned and use other behringer gear and have not been sorry ever. If you need an economical DI preamp look no further , you've found it!
Music background: Guitar player, singer for 45 yrs.

I am pleased with this....

I have waited a while to rate this.... as any acoustic guitarist knows, your mood has more to do with how well you like your sound than anything else... I own several preamps and have liked them all at one time or another.... after careful consideration, I have decided I would be lost without this Acoustic Driver... The pros are it is rugged and has a tone I think is a good compromise.... the cons are the processed function could have more gain and the battery doesn't last too long.... maybe 4 or 5 hours.... I have a rechargeable so I don't care and use a power supply in my studio.... I am surprised how good the tone is before the activation button is pressed....
Music background: Latin and fingerstyle Jazz

must have for piezo pockups

This review is specifically for piezo under the saddle pickup users who may be hesitant to pick a modeling amp. I bought this over a year ago and use it every time I play live. 90% of the time I plug into PA system via XLR cable. It's variable who will be running the sound system and everyone has a "fix" for piezo guitars. This box can do a better job, and provides a warm balanced tonal signal to the PA system. At first I tried many settings and never liked what I heard. Lately I've just been using the "folk" settings recommended in the user manual and it is perfect for my Yamaha LL-6 guitar. The mid, treble, blend options are confusing, but start with folk settings and refine from there. I occasionally use with a humbucking pickup guitar with same settings and which also gives a great tonal balance. So for $ you get a versatile hardworking "always on" solution for piezo pickup guitars. Maybe my next guitar will have $300 electronics with onboard EQ etc, but for now the adi21 solved the piezo problem for me perfectly. I do have a couple effects pedals before the adi21, chorus, reverb, tremelo, and it works fine last in the chain.
See also: Multi Effects Pedals, Behringer, Behringer Multi-effects, Behringer Direct Boxes