Behringer BDI21 V-Tone Bass Driver DI Box

Behringer BDI21 V-Tone Bass Driver DI Box

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Behringer BDI21 V-Tone Bass Driver DI Box


The BDI21 combines the features of an active DI (direct injection) box with our proprietary tube emulation circuitry. It’s like having a truckload of vintage tube amps right at your toes! The Blend control allows you to mix the amount of tube emulation you want with your direct bass signal. And if you just want your instruments straight, pure tone – just step on the switch and the ADI21 functions as a superb active DI box.


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  • Analog modeling bass preamp/stompbox with DI recording output
  • This Behringer product has been designed to compete head-to-head with leading products on the market
  • Authentic V-TONE modeling technology capable of dialing up big vintage tube tones, funky slap sounds, crunchy distortions and all in between
  • Provides a truckload of great amps in a single stomp box—from traditional bass amps to modern overdriven amp tones that would typically require a multitude of effects units
  • Authentic tube emulation circuitry can be mixed with the direct bass signal via blend control
  • Presence control for definition and upper harmonics plus ultra-musical 2-band EQ specifically tuned for bass guitars
  • Dual DI mode for either direct recording output with tube emulation or standard active direct injection box in bypass mode
  • Output available on ¼'' TS or balanced, gold-plated XLR connectors
  • Ground lift switch eliminates typical ground loop problems
  • Runs on a 9 V battery or the Behringer PSU-SB DC power supply (not included)

You’ve Got Control

With its dedicated Drive, Treble, Bass, Level, and Presence dials, the BDI21 goes above and beyond the call of duty, giving you vintage tube tones for funked-up slap, gonzo overdrive and everything in-between. You can use the BDI21 as a recording output DI with tube emulation, or as a standard active DI box, when running in bypass mode. The output is presented in ¼ " TS or balanced, gold-plated XLR connectors. There's also a ground lift switch that eliminates typical ground loop hum problems. You can power this bad boy with a 9V battery or our PSU-SB DC power supply (not included).

Sound Value

Thanks to our revolutionary Class-D amplifier technology, we are able to provide you with enormous power and incredible sonic performance in an easy-to-use, ultra-portable and lightweight package. Class-D amplification makes all the difference, offering the ultimate in energy efficiency and eliminating the need for heavy power supplies and massive heat sinks. This amazing technology makes it possible to design and build extremely-powerful products that are significantly lighter in weight than their traditional counterparts, while using less energy and protecting the environment.


Connector ¼" TS
Impedance 1 MΩ


Connector ¼" TS
Impedance 1 MΩ

Balanced output

Connector XLR
Impedance 200 Ω
Power supply 9 V, >50 mA DC regulated
Power connector 2 mm DC jack, negative center
Battery 9 V type 6LR61
Power consumption 25 mA


Dimensions (H x W x D)

approx. 5 x 3 9/10 x 2"

approx. 127 x 100 x 50 mm

Weight approx. 1.01 lbs / 0.46 kg
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