Behringer V-Tone Acoustic ADI21

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Behringer V-Tone Acoustic ADI21

Behringer

V-Tone Acoustic ADI21

4.5 Expert Rating

Product Info

Article Number: 180518
Model: V-Tone Acoustic ADI21
Price: $25.30

* Prices may vary. Check retailer for current pricing and availability.

The ADI21 is a clever little box for acoustic players on a tight budget. It won't fool anyone into thinking it's a high-end tube amp, but it's surprisingly useful for shaping a piezo pickup's harshness and getting a clean direct signal—perfect for singer-songwriters or anyone needing a basic DI with a touch of warmth.

Product Description

Behringer V-Tone Acoustic ADI21, Analog Modeling PreampNow the coveted "unplugged" sound is super-favorable! You want the naturally warm and present sound of tube amplifiers? The ADI21 is an analog modeling preamp / effect pedal with direct recording output for acoustic guitars.

Its ultra-musical 3-band EQ with tune-able mid-range is ideal for simple feedback suppression and control of hard-sounding piezo pickups. A high input impedance ensures maximum signal repetition and dynamics. You can use the ADI21 either as a direct recording preamp with tubes / microphone simulation or as an active standard DI box. The output is designed as a 6.3 mm mono jack and as a balanced gold-plated XLR connector. A ground lift switch prevents problems with ground loops, the power supply is via a 9 volt battery or a DC adapter (not included).

  • Stompbox with DI recording output for acoustic guitars
  • Authentic tube and microphone modeling circuitry provides the natural warmth and presence
  • removed by microphone acoustic guitar in conjunction with a tube amp
  • Ultra-musical 3-band EQ with swept mids for accurate feedback control and to eliminate the harsh harmonics of piezo pickups
  • Dual DI mode for either direct recording output with tube / microphone simulation or standard active DI box
  • Outputs on 6.3mm TS or balanced
  • gold-plated XLR connector
  • Ground Lift switch
  • Runs on 9 V battery or DC adapter (not included)
PROS
  • • Provides surprisingly usable tube amp simulation for the price
  • • 3-band EQ with tunable mid offers decent feedback control
  • • High input impedance preserves piezo pickup dynamics effectively
  • • Balanced XLR output minimizes noise for direct recording
CONS
  • • Plastic enclosure feels flimsy and not roadworthy
  • • Analog modeling is a compromise; lacks true tube warmth
  • • EQ is basic, limiting tonal sculpting possibilities

Product Video

Key Features

Effect Type Analog Modeling Preamp / DI Box
Controls 3-band EQ (Bass, Mid with Tune, Treble), Gain, Output Level
Presets None – purely analog circuitry
Connections 6.3 mm Mono Jack Output, Balanced Gold-Plated XLR Output, Ground Lift Switch
Power Supply 9V DC Adapter (not included)
Weight Approximately 1 lb

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Frequently Asked Questions

It's a simplified emulation, adding a subtle warmth and perceived 'roundness', but don't expect a genuine tube amp response.
While it technically will work, the high input impedance is really optimized for piezo pickups to preserve their dynamic range; magnetic pickups might sound duller.
The balanced XLR connection does significantly reduce noise compared to the 6.3 mm output, but ground loop issues can still occur depending on your setup.

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