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Darkglass Microtubes B3K V2 Bass Preamp Pedal Demo

Bass Preamp Pedal with Level, Drive, Grunt, Mid Boost, and Blend Controls

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Same Tube-like Overdrive with Even More Tone-shaping Power

Darkglass's line of preamps and overdrive pedals are taking the bass world by storm. Their grind and friendly interfaces have placed them on many pedalboards of bass players around Sweetwater. Their popular B3K V2 keeps the same grind as the original design and adds the ability to restore the mid frequencies. Now you can send your bass rig into meltdown without losing any clarity. If you're looking to add grind to your tone while maintaining your tonal core, you can't go wrong with the Darkglass B3K V2.

Grunt, Mid Boost, and Blend

In addition to Level and Drive controls, the Darkglass Microtubes B3K V2 bass preamp pedal gives you two secret weapons. The Grunt switch lets you select the amount of low-frequency content to be saturated with two LF-boost levels before the clipping stage. And the V2 version of this popular pedal boasts a Mid Boost switch that adds a subtle 6dB boost to 300Hz, instantly bringing your bass's character to the forefront. And for instant onboard parallel processing, the Microtubes B3K V2 offers a Blend control that mixes the clean input and effected overdrive signals.

Darkglass Microtubes B3K V2 Bass Preamp Pedal Features:

  • The natural dynamics and organic compression of vintage tube amps and tape machines
  • Level control sets the volume of the overdrive signal
  • Drive control sets the amount of saturation in the overdrive signal
  • Blend controls bring your clean signal back in
  • Grunt switch lets you select the amount of LF content to be saturated
  • Mid boost button brings back frequencies that can be lost with other drive pedals
  • Power requirements: regulated 9-volt DC adapter with center-negative plug

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At Sweetwater, we're so picky that what we call a "demo" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

What demo means to us is that we've had it out of the box, or maybe it was in a customer's hands for a few days and isn't "factory fresh" as a result. Every demo item we sell has Sweetwater's 2-year Total Confidence Coverage™ warranty, and has been tested and verified up to "new" specs by our factory-authorized technicians to make sure it's in perfect working order before we ship it to you.

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Tech Specs

  • Type: Preamp, Overdrive
  • Form Factor: Pedal
  • Inputs: 1 x 1/4"
  • Outputs: 1 x 1/4"
  • Power Source: 9V DC power supply (sold separately)
  • Power Usage: 20mA
  • Height: 1.77"
  • Width: 2.95"
  • Depth: 4.45"
  • Manufacturer Part Number: B3K2

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Customer Reviews

Write your review
Rated 5/5

More than just the Nolly sound.

This thing is a metal bass tone generator. Not just the Nolly sound. It gives you a brutal and clear bass overdrive that will mold to whatever bass you are using rather than turning your bass magically into a dingwall. It cuts through the mix and it does so with authority. Yes it's a little pricey, yes there are cheap clones out there that sound close, but nothing sounds quite like the real deal.
Rated 5/5

From subtle to mean!

This little guy truley packs a punch! Practicing at lower volumes with the band, i couldn't really get a grasp on the dirt and going this thing delivers but after my first show using it at full volume I was head over heels.
Thank you Timothy VanSlyke!!
Rated 5/5

Distortion That Doesn't Loose Definition

This little beast is a great piece of engineering that can cover light distortion to really heavy while keeping the definition of the note you are playing.
Rated 5/5

I don't want to turn it off

I'm mainly using this just to add a little grit to my signal. It does subtle dirt very well. It also does a great overdrive if you want more bite. With the clean blend you never lose the low end. So good.
Rated 5/5

A MUST for any Metal bassist

If you play in any type of hardcore or metal band you need this pedal! I have tried the full tone OCD (which I love), Aguilar Agro, Rat, Bass big muff, modeling overdrives and this one is the absolute winner. Cuts thru the mix without sounding glassy or losing any low end. Match this up with your favorite preamp pedal(in my case it"s an Aguilar Tone Hammer) and you"re set!
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