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Microtubes B3K

CMOS Bass Overdrive

Little dude, Big attitude

You have acquired an unusual tool. A perfect combination of brutality 
and clarity, the Microtubes B3K delivers defined and powerful 
saturation in an intuitive format. There are no rules and no limits, so 
dig in and unleash your tone.

Warning

The Microtubes B3K has a current draw of 20mA. Only use a 
regulated 9V DC adapter with a center-negative plug. Due to 
ecological reasons it does not accept batteries. Unregulated power 
supplies and/or higher voltages may result in suboptimal noise 
performance and even damage your unit, voiding the warranty.

Warranty

To activate the warranty, we encourage you to register your product 

on: http://mypedal.darkglass.com and enter the serial number on 

the back of your pedal. 
Please contact us via email [email protected] before 

shipping a product to us.

Controls

BLEND

: Mixes the clean input signal with the overdriven signal. The 

clean signal remains at unity gain while the volume of the overdriven 
signal is set by the Level knob, allowing for fine control of the blend ratio.

LEVEL

: Sets the volume of the overdriven signal.

DRIVE

: Sets the amount of saturation in the overdriven signal.

GRUNT SWITCH

: Sets the amount of low frequency content to 

saturate by selecting between three different bass boost levels 
before the clipping stage.

ATTACK SWITCH

: Sets the amount of treble content to saturate: The 

“Boost” setting emphasizes the treble content extra clarity and 
presence. The “Flat” position leaves this register untouched while 
the “Cut” position will reduce the amount of high frequencies being 
saturated. This new addition helps to keep the treble portion of the 
signal under control, specially useful when playing with new strings 
and/or cabinets with tweeters!

Disclaimer

In the interest of continuous improvement, specifications are subject 
to change without notice. If you have any questions, please don’t 
hesitate to contact us at www.darkglass.com
The manufacturer claims that the above product fulfills the 
requirements as set by EN55013, EN55020, EN60555-2, EN60555-3, 
RoHS, WEEE.

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