Detail 01
Mid Boost: 6 dB at 300 Hz
Adds a fixed midrange boost centered at 300 Hz.
Product detailSKU #1500000231866
DarkglassMicrotubes B3K v2 Bass Overdrive Effects Pedal
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Independent shopping perspective
The Korena take
Microtubes B3K V2 is a compact bass overdrive pedal with dedicated Blend, Level, and Drive controls for setting the clean-to-overdriven balance, overdrive volume, and saturation amount. The Grunt switch boosts low frequencies before the overdrive circuit. A Mid Boost switch adds 6 dB at 300 Hz, addressing midrange that can be lost in high-gain bass sounds. Its compact format suits pedalboard placement while retaining direct control over the saturated signal.
Strong match
Who this is for
- Blending clean bass signal with an adjustable amount of overdriven signal
- Adding a 6 dB boost at 300 Hz to a high-gain bass sound
- Building a compact bass-overdrive section on a pedalboard
Consider the trade-offs
When to look elsewhere
- Power setups without a center-negative 9V DC adapter capable of supplying 20 mA.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Grunt switch
Boosts low-frequency content before the overdrive circuit.
Detail 03
4.45 x 2.95 inches
The pedal’s listed footprint for arranging pedalboard space.
Final check
Know before you order
- 01Provide a center-negative 9V DC adapter capable of 20 mA.
- 02Reserve a 4.45 x 2.95 inch space if placing it on a pedalboard.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What does the Mid Boost switch do?
It adds a 6 dB boost centered at 300 Hz.
02What does the Grunt switch affect?
It boosts low-frequency content before the overdrive circuit.
03What power does it require?
It requires a center-negative 9V DC adapter and draws 20 mA.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsConnections & power
- Power Requirement
- 9V DC adapter with a center-negative plug
1 detailsSize & weight
- Dimensions
- 4.45 inch x 2.95 inch (11.3 x 7.5 cm)
1 detailsOther
- Current Draw
- 20mA
