An intuitive format that contains brutality and clarity at the same time is what the B3K delivers. A defined and powerful overdrive, with a simple layout, it sets no boundaries or rules to unleashing the desired tone.

Specs
High-pass frequency

Controls the cutoff frequency to be distorted, ranging from 100Hz (for thicker, fuzzier saturation) or 1kHz for ultra-sharp definition. 

Low-pass frequency

Controls the cutoff frequency to be mixed back to the high-pass side. Ranging from 50Hz (for only sub-bass) and 500Hz to preserve some clean mids. 

Level

Sets the overall output volume of the unit. 

Drive

Sets the amount of distortion for the high pass side. 

Mix

Sets the blend between low-pass and high-pass signals.

Mids

Active mid control placed after the Mix control. +-12dB @ 500Hz. 

Output

Connect from the ¼” Output jack to the input of your amplifier or another effects pedal. 

Input

Connect your instrument or output from your pedal board to the ¼” mono jack. 

9V DC

Only use a regulated 9V DC adapter with a center-negative plug.

• Precision Tone Shaping: The Microtubes X uses a unique approach to bass distortion, dividing the signal into low and high frequencies for precise tone control and a clean, powerful low end.
• Two-Band Distortion Engine: Allows you to tailor the high-frequency distortion while keeping the low end clean, giving you a well-defined, aggressive sound without sacrificing clarity.
• Variable Low-Pass Filter: Adjustable low-pass filter controls how much of the clean low-end signal is retained, perfect for maintaining punch and definition in your tone.
• High-Pass Filter for Controlled Drive: Customize the frequency range of the distorted signal with the high-pass filter, achieving everything from warm overdrive to intense fuzz.
• Blend Control for Optimal Balance: Mix your clean and distorted signals to fine-tune your sound, whether you want subtle saturation or full-on grit.
• Compact and Pedalboard-Friendly Design: A compact enclosure that fits easily into any setup without taking up too much space.
• Road-Ready Construction: Built with Darkglass’s signature durability, designed to withstand rigorous live use.

Video Review: Darkglass Electronics Microtubes X Multiband Bass Distortion