Darkglass Electronics B1K CMOS Bass Overdrive
Mini Bass Overdrive
The Microtubes B1K is a phenomenal tribute to one of our most legendary distortion circuits in a compact and intuitive format. We are proud to introduce our Microtubes B1K distortion pedal, the first of its kind from an all-new lineup.
Front features
Level
Sets the volume of the overdriven signal.
Drive
Sets the amount of saturation in the overdriven signal.
Dimensions
Width: 50 mm /2ā³
Length: 45 mm/ 1¾ā³
Height: 100 mm / 4ā³
Weight: 205 g / 0.45 lb
Ā Warning
The Microtubes B1K has a current draw of 30 mA. Only use a regulated 9V DC adapter with a center-negative plug.
Unregulated power supplies and/or higher voltages may result in suboptimal noise performance and even damage your unit, voiding the warranty.
Features
- Mini format version of the B3K
- Outer ring of front knob sets the level
- Inner ring sets the gain
- Back compartment reveals Blend and Tone controls
- DIP switches in back compartment for Grunt (low-end boost) and Mboost (6 dB boost from 300 Hz to 1 kHz)
- Width 50mm / Height 100mm /Depth 45mm
- Weight: 205g
Blend
Mixes the clean input signal with the overdriven signal.
The clean signal is fixed at unity gain, while the volume of the overdriven signal is set by the Level knob, allowing for fine control of the blend ratio.
Turn clockwise to blend in the clean signal.
Tone
Controls the high-frequency content of the sound. A variable low pass filter from 3 kHz to 8 kHz. Turn CCW for a brighter sound.
Grunt
Provides a low-end boost to massively thicken your sound when engaged.
MBoost
Gives a subtle 6 dB boost from 300 Hz to 1 kHz to help you cut through the mix.
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Darkglass Electronics B1K CMOS Bass Overdrive
Darkglass Electronics B1K CMOS Bass Overdrive
Mini Bass Overdrive
The Microtubes B1K is a phenomenal tribute to one of our most legendary distortion circuits in a compact and intuitive format. We are proud to introduce our Microtubes B1K distortion pedal, the first of its kind from an all-new lineup.
Front features
Level
Sets the volume of the overdriven signal.
Drive
Sets the amount of saturation in the overdriven signal.
Dimensions
Width: 50 mm /2ā³
Length: 45 mm/ 1¾ā³
Height: 100 mm / 4ā³
Weight: 205 g / 0.45 lb
Ā Warning
The Microtubes B1K has a current draw of 30 mA. Only use a regulated 9V DC adapter with a center-negative plug.
Unregulated power supplies and/or higher voltages may result in suboptimal noise performance and even damage your unit, voiding the warranty.
Features
- Mini format version of the B3K
- Outer ring of front knob sets the level
- Inner ring sets the gain
- Back compartment reveals Blend and Tone controls
- DIP switches in back compartment for Grunt (low-end boost) and Mboost (6 dB boost from 300 Hz to 1 kHz)
- Width 50mm / Height 100mm /Depth 45mm
- Weight: 205g
Blend
Mixes the clean input signal with the overdriven signal.
The clean signal is fixed at unity gain, while the volume of the overdriven signal is set by the Level knob, allowing for fine control of the blend ratio.
Turn clockwise to blend in the clean signal.
Tone
Controls the high-frequency content of the sound. A variable low pass filter from 3 kHz to 8 kHz. Turn CCW for a brighter sound.
Grunt
Provides a low-end boost to massively thicken your sound when engaged.
MBoost
Gives a subtle 6 dB boost from 300 Hz to 1 kHz to help you cut through the mix.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Mini Bass Overdrive
The Microtubes B1K is a phenomenal tribute to one of our most legendary distortion circuits in a compact and intuitive format. We are proud to introduce our Microtubes B1K distortion pedal, the first of its kind from an all-new lineup.
Front features
Level
Sets the volume of the overdriven signal.
Drive
Sets the amount of saturation in the overdriven signal.
Dimensions
Width: 50 mm /2ā³
Length: 45 mm/ 1¾ā³
Height: 100 mm / 4ā³
Weight: 205 g / 0.45 lb
Ā Warning
The Microtubes B1K has a current draw of 30 mA. Only use a regulated 9V DC adapter with a center-negative plug.
Unregulated power supplies and/or higher voltages may result in suboptimal noise performance and even damage your unit, voiding the warranty.
Features
- Mini format version of the B3K
- Outer ring of front knob sets the level
- Inner ring sets the gain
- Back compartment reveals Blend and Tone controls
- DIP switches in back compartment for Grunt (low-end boost) and Mboost (6 dB boost from 300 Hz to 1 kHz)
- Width 50mm / Height 100mm /Depth 45mm
- Weight: 205g
Blend
Mixes the clean input signal with the overdriven signal.
The clean signal is fixed at unity gain, while the volume of the overdriven signal is set by the Level knob, allowing for fine control of the blend ratio.
Turn clockwise to blend in the clean signal.
Tone
Controls the high-frequency content of the sound. A variable low pass filter from 3 kHz to 8 kHz. Turn CCW for a brighter sound.
Grunt
Provides a low-end boost to massively thicken your sound when engaged.
MBoost
Gives a subtle 6 dB boost from 300 Hz to 1 kHz to help you cut through the mix.












