Pricing and availability

We compare 600+ stores and found this item at 9 stores. Prices updated .

Sweetwater
5.0 (14)
$259.99
Guitar Center
5.0 (1)
$259.99
Amazon
4.6 (60)
$259.99
Reverb
5.0 (11)
$210.00 New
$208.80 Used
Musician's Friend
5.0 (2)
$259.99
Thomann
4.7 (63)
$209.00
Gear4Music
£219.00

Average Price: $243

High-end/Boutique

$70

$201+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 6 merchants for "Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unleash the power of your bass with the Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive. Building upon the legacy of its predecessor, this pedal integrates modern enhancements for a more dynamic and versatile performance. The CMOS circuitry retains the signature brutality and clarity, while the new mid-boost feature ensures your bass lines cut through the mix with precision. The updated tone control replaces the previous attack switch, offering refined control over your high frequencies. Whether you're dialing in a subtle drive or a full-throttle rumble, the B3K V2 delivers a rich, defined saturation.

Enthusiasts will appreciate the intuitive layout, featuring essential controls such as Drive, Level, Tone, and Blend, alongside the Grunt and Mid Boost buttons for further tonal sculpting. With its true bypass, your signal remains pristine when the pedal is disengaged. Designed with the gigging musician in mind, its rugged construction ensures reliability on stage or in the studio. Perfect for bassists seeking an overdrive pedal that balances aggression with clarity, the B3K V2 is a must-have addition to any pedalboard.

Key Features:

  • CMOS circuitry for tube-like overdrive and warmth
  • Controls: Drive, Level, Tone, and Blend
  • Grunt switch for low-end boost options
  • Mid Boost button for a 6dB increase between 300 Hz to 1 kHz
  • True bypass for signal integrity
  • Robust connections: 6.3 mm input/output jacks, 9V DC power supply
  • Power consumption: 20 mA
  • Made in Finland, reflecting superior craftsmanship

Product 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"

FAQs

What kind of overdrive tones can I expect from the Darkglass Microtubes B3K V2?

The Darkglass Microtubes B3K V2 offers a versatile range of overdrive tones, from subtle warmth to aggressive distortion, making it ideal for genres like rock and metal. Its unique blend control allows for precise mixing of clean and overdriven signals.

Is the Darkglass Microtubes B3K V2 suitable for live performances?

Yes, the Darkglass Microtubes B3K V2 is well-suited for live performances. Its robust construction and intuitive controls make it easy to dial in your desired tone quickly, ensuring reliable performance on stage.

Does the Darkglass Microtubes B3K V2 work with active basses?

The Darkglass Microtubes B3K V2 is compatible with both passive and active basses, providing a consistent overdrive effect regardless of your bass's electronics.

What power supply is required for the Darkglass Microtubes B3K V2?

The Darkglass Microtubes B3K V2 requires a 9V DC power supply, with a power usage of 20mA, which is sold separately.

How does the Darkglass Microtubes B3K V2 differ from the original B3K?

The V2 version of the Darkglass Microtubes B3K features enhanced tonal flexibility with improved control options, offering users more precision in shaping their sound compared to the original model.

The Bass Channel

The Bass Channel

Darkglass Microtubes B3K V2 Bass Demo

Video thumbnail for Darkglass Microtubes B3K V2 Bass Demo by The Bass Channel

Darkglass Microtubes B3K V2 Bass Demo

The Bass Channel

The Bass Channel

Video thumbnail for Darkglass B3K V2 [Bass Demo] by Patrick Hunter

Darkglass B3K V2 [Bass Demo]

Patrick Hunter

Patrick Hunter

Video thumbnail for Strings Quick Demo : Darkglass Electronics Vintage Microtubes Vs. B3K V.2 Vs Alpha Omicron by Strings Shop

Strings Quick Demo : Darkglass Electronics Vintage Microtubes Vs. B3K V.2 Vs Alpha Omicron

Strings Shop

Strings Shop

Video thumbnail for Darkglass Electronics B7k & B3k V2 DEMO by Erik Arkö

Darkglass Electronics B7k & B3k V2 DEMO

Erik Arkö

Erik Arkö

Video thumbnail for Darkglass Electronics Microtubes B3K V2 Bass Overdrive Pedal - Demo by Pertybass

Darkglass Electronics Microtubes B3K V2 Bass Overdrive Pedal - Demo

Pertybass

Pertybass

Video thumbnail for Darkglass Microtubes B3K V2 CMOS Bass Overdrive Pedal by Scapular Winging Records

Darkglass Microtubes B3K V2 CMOS Bass Overdrive Pedal

Scapular Winging Records

Scapular Winging Records

Reviews

PROS

  • Distinct overdrive and distortion tones

  • Blend knob allows for tonal versatility

  • Non-click footswitch; smooth and sturdy operation

  • Solid, lightweight aluminium chassis

  • Maintains low-end while adding grit or distortion

  • Suitable for both bass and guitar use

  • Responsive to different pickups, strings, and playing techniques

CONS

  • Awkward placement of the 9V DC input jack

  • Initial units may have quality control issues

  • Sound heavily depends on rest of signal chain

  • Can produce hiss when engaged

  • Tends to get fizzy at higher tone settings

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive.

Comparisons

  • The B3K is described as sharper and brighter, while the VMT leans fuzzier and more vintage sounding, making the B3K more suitable for punk/hardcore.

    Source
  • The B3K is perceived as having a more modern tone, while the VMT provides a warmer, 90's punk-era sound, particularly when the era knob is maxed out.

    Source
  • Switching from a B3K to an EBS Valve Drive is suggested for those seeking a subtler overdrive than the B3K offers.

    Source

Use cases and applications

  • The B3K pairs well with a Jazz bass, utilizing its mid-scoop and presence; the VMT complements a Precision bass due to its mid-focus.

    Source
  • The VMT can be used as an “always on” pedal with low gain settings, effectively cutting through a mix, especially in punk genres.

    Source
  • For those using a SansAmp BDDI, combining it with the B3K or VMT allows for versatile tone shaping, with the B3K leaning towards metal tones.

    Source
  • Using a compressor in front of the B3K can diminish its impact, potentially affecting overdrive performance.

    Source

Features and functionality

  • Owners note the B3K's ability to achieve a punk/hardcore sound naturally, while the VMT is better for a vintage tone.

    Source
  • It maintains low end well but struggles to deliver a subtle overdriven tone, even with drive and blend turned down.

    Source

User experience

  • One owner felt their B3K might be defective due to its unexpectedly subtle overdrive, despite cranking all dials up.

    Source

Setup and maintenance

  • A lack of amp headroom may hinder achieving the desired overdrive effect with the B3K.

    Source
Add

4.5 out of 5

Based on 2 Reviews and 10 Ratings

5 star
4 star
3 star
2 star
1 star
emuemulator2

b3k mid

Used by everyone and as such makes very generic metal bass sounds of the 2000s.

nicjimba55

Another flavor of dirt

Honestly, I'm not entirely sold on this one. Seems finicky, but I'm always messing around with it.

Artist usage

Add artist
See how Alex Webster uses Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive

Alex Webster

Bassist

Cannibal Corpse

...
Verified via Photo

Alex Webster uses the Darkglass Electronics Microtubes B3K V2, as shown in the user-uploaded photo. Initially, he used the V1 version, which has since been removed from Equipboard's page.

See how Tomoya Ohtani uses Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive

Tomoya Ohtani

Guitarist, Bassist

...
Verified via Photo

Tomoya Ohtani posted a photo of the Darkglass Microtubes B3K CMOS to Instagram.

See how Amos Heller uses Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive

Amos Heller

Bassist

The Agency

...
Verified via YouTube

He tests here the B3K by Darkglass

See how Mark Damon uses Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive

Mark Damon

Bassist

The Pretty Reckless

...
Verified via Photo

Mark Damon discussed the signal chain of his pedalboard on his Instagram post on 12/12/22

My signal goes through the @ernieball volume pedal (for smooth hands-free volume adjustments), straight to the rock solid @bossfx_us TU3 tuner, into the @rupert_neve RNDI for an “always clean” tone to FOH. Then right up the @wizardamplificationinc Crunch compressor pedal (great compression based on the classic 1176), to the @ehx NanoPog octave divider (used on Miss Nothing), to the @darkglasselectronics B3K distortion pedal (my current favorite distortion for bass…doesn’t lose the bottom end!), to the @jimdunlopusa MXR custom shop Script Phase 90 (my “secret sauce”) and then out to my amp.

See how Charlie Wood uses Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive

Charlie Wood

Bassist

Pale Waves

...
Verified via Photo

In this photo from 2022 a darkglass pedal can be seen on his pedalboard

See how Ray Riendeau uses Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive

Ray Riendeau

Bassist, Composer

Machines of Loving Grace

...
Verified via YouTube

In this video, Ray Riendeau demonstrates the Darkglass Electronics Microtubes B3K V2 bass effects pedal.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Darkglass Electronics Microtubes B3K V2 CMOS Bass Overdrive, it is most commonly used with the following gear.

Community setups

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