Darkglass Microtubes B7K Ultra V2 Bass Preamp Pedal - Aux In

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Darkglass Electronics - Microtubes B7K Ultra V2 Bass Preamp Pedal - New model with Aux In

Preamp Pedal for Electric Bass Guitar, with Overdrive, 4-band EQ, Speaker Cabinet Emulation, and DI Output
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The new version with Aux in

The upgraded Microtubes B7K Ultra features all the versatility and sonic possibilities of the first version plus: (1) Single user loadable cabinet simulation impulse response. (2) Micro-USB B port to connect to PC/Mac to load a different Virtual Cabinet through the Darkglass Suite. (3) 3.5mm headphone output with cabinet simulation. (4) Balanced XLR output with switchable cabinet simulation. Aux in 

Darkglass Suite

Darkglass Suite is a free software that allows you to load impulse response cabinet simulations and control various settings on your B7K Ultra v2 pedals via USB. It comes with a set of impulses made by selected Darkglass artists, but also allows you to load your own impulses.

Prime Your Bass Tone for Any Application

Building on the sonic tenacity of its predecessor, the Darkglass Microtubes B7K Ultra V2 bass preamp pedal offers more versatility than ever for your bass tone. In response to numerous player requests, Darkglass has added a balanced XLR output with switchable cabinet emulation — you can achieve full, amp-like tone just by going direct to the sound system or recording chain. You can connect to your Mac or PC via USB to load up different virtual cabinet emulations. And the headphone output features cabinet emulation too, making the Microtubes B7K Ultra V2 a great practice partner. From practice and rehearsal to performance and recording, the Darkglass Microtubes B7K Ultra V2 is a workhorse bass preamp pedal.

Optimize your bass tone for any application

Whether you're plugging into a bass amplifier or going direct, the Darkglass Microtubes B7K Ultra V2 bass preamp pedal is a great way to optimize your bass tone. It combines a powerful preamp, independently switchable overdrive, and a 4-band EQ to deliver ample sonic options. Toggle switches for the mid-EQ bands allow for precision tone shaping, while the Attack and Grunt switches determine how your highs and lows are affected by the overdrive circuit. The blend control balances your dry tone and the overdrive, meaning you can dial in growling overdrive without sacrificing your fundamental tone. 

Darkglass Microtubes B7K Ultra V2 Bass Preamp Pedal Features:

  • Preamp pedal for electric bass guitar
  • Independently switchable overdrive, with a Blend control to balance dry tone and overdrive
  • 4-band EQ with switchable mid frequencies allows you to explore a wide tonal range
  • ±12dB boost/cut range for each EQ band
  • Attack and Grunt switches set the amount of treble and bass to be overdriven
  • Direct output with switchable speaker cabinet emulation for live sound systems or recording devices, 1/4" out for bass amplifiers
  • Headphone output with cabinet emulation
  • Micro USB port connects to your Mac or PC for loading different speaker cabinet emulations

STL Pro Audio is the New Zealand Distributor for Darkglass Electronics.


  • 5
    Everything needed in a distortion pedal

    Posted by Michael Side on 10th Oct 2020

    Everything you need in a distortion pedal and more. So many options and flexibility gives you the ability to master your distorted tone.

  • 5

    Posted by Andrew on 18th Sep 2020

    Amazing pedal...worth the price. A compact little beast that has made my sound and pedal board a whole lot more classy - great service too. Thanks!

  • 5
    good gift

    Posted by Unknown on 4th Jun 2019

    bought this for my bf's birthday, he loves it