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Design and Tone. Perfected: Microtubes B3K v2 and Microtubes B7K v2play button

Design and Tone. Perfected: Microtubes B3K v2 and Microtubes B7K v2

BK Series Explained: Microtubes B3K by Uriah Duffyplay button

BK Series Explained: Microtubes B3K by Uriah Duffy

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Darkglass Microtubes B3K V2 is a bass preamp pedal designed to deliver the natural compression and harmonic richness of vintage tube amplifiers in a compact, pedalboard-friendly format. Musicians and engineers at Darkglass are thrilled to offer the Microtubes B3K V2, now with even more tone-shaping power. The B3K V2 builds on the legendary grind and simple interface of the original B3K, adding a mid boost switch to restore critical midrange frequencies that provide clarity and help you cut through the mix.

Blend, Level and Drive Put Tone Control at Your Feet

The B3K V2 gives bassists an intuitive set of controls to craft their ideal saturated tone. The blend knob mixes clean and overdriven signals, allowing you to dial in the perfect ratio. The level knob determines the volume of the overdrive, while the drive knob sets the amount of saturation. Whether you're looking for a subtle grit to add texture or an aggressive fuzz, the B3K V2 delivers.

Grunt Switch Boosts Low-End for Massive Tone

The grunt switch provides a huge low-frequency boost before the overdrive circuit, letting you create a monstrous bass tone that will shake the walls. Engaging the grunt switch saturates your low-end in a way that produces a thick, distorted growl without losing clarity.

Mid Boost Switch Cuts Through the Mix

The B3K V2 adds a mid boost switch that provides a 6dB boost centered at 300Hz, restoring critical midrange frequencies that are often lost with high-gain bass tones. The mid boost helps your overdriven tone cut through the mix, allowing your bass to be heard even among dense guitar tracks and drums.

Simple, Intuitive Design Gets You the Tone You Want

Despite its array of tone-shaping features, the B3K V2 is designed to be simple to use. The uncluttered control layout, with dedicated knobs and switches for each function, lets you dial in your ideal saturated bass tone quickly and intuitively. Whether you want subtle grit, aggressive fuzz or anything in between, the B3K V2 makes it easy to unleash the tone you want.

Darkglass Microtubes B3K V2 Bass Overdrive Effects Pedal
Darkglass Microtubes B3K V2 Bass Overdrive Effects Pedal
Darkglass Microtubes B3K V2 Bass Overdrive Effects Pedal

collapse expand iconSpecs

  • Power requirement: 9V DC adapter with a center-negative plug
  • Current draw: 20mA
  • Dimensions: 4.45" x 2.95" (11.3 x 7.5 cm)