Darkglass Electronics B7K Ultra Limited Kraken Edition


The Darkglass Microtubes B7K Ultra steps up where the regular B7K leaves off giving you a bass preamp and overdrive in one pedal with even more control than ever before. The B7K was already known for having an incredible range of tones in one pedal but the B7K Ultra takes it a step further with extra switches, knobs and footswitches to help you dial in your sound.

And this is a highly limited version of the pedal with the Kraken Artwork.

Separate Distortion and Preamp

Before the B7K had a single footswitch that controlled both the overdrive and preamp sections of the pedal. Now these are controlled independently meaning even your clean tone can still have the same incredible B7K attack and shimmer and then you can dial in the overdrive when you need it.

So Many Controls

Just like the B7K you can do a lot with the B7K Ultra. Starting off on the top row of controls you have your Master volume for the preamp, Blend to mix the clean and overdriven signals, Level sets the volume of the overdriven signal  and finally Drive sets the amount of overdrive. Just with these controls you have enough to get everything from a subtle boost to your signal to all our overdriven Djent heaven.

Moving down a layer you hit the EQ section. Bass, Lo Mids, Hi Mids and Treble all act like you would expect but it still has a couple more tricks. For example the Grunt switch sets the amount of low end signal to saturate by applying a boost to a set range of frequencies before clipping. The Attack does the same thing but for the high end frequencies. Finally you can select the frequencies you want to control with a pair of switches that let you go between three options for both the hi mid and lo mid controls.

The Black Kraken Beast

Designed with the famed Argentinian artist Ignacio Bazán Lazcano, who is known for his visual work on such legendary game franchises as Halo Wars 2 and Alien plus the Hollywood blockbuster Kong: Skull Island, the B7K Ultra Limited Kraken Edition truly combines art, form and function in one stellar package.

The gorgeous laser engraved Kraken artwork on the pedal represents the tonal depth of the B7K Ultra and inspires the players to search their inner depths and take the tonal plunge with the mythical Kraken.

Who knows what lies beneath?

  • Gorgeous Artwork: a laser engraved Kraken created by Ignacio Bazán Lazcano
  • Each pedal comes with a special booklet with sketches and other art, especially commissioned for Darkglass
  • All black anodized milled aluminium unibody
  • Every pedal is uniquely numbered and signed by laser
  • Limited to 999 units in total

The Microtubes B7K Ultra takes the Darkglass powerful dynamic saturation circuit from the B3K, then adds a four-band equalizer and a balanced line driver for even greater versatility. A dedicated foot switch engages the overdrive section independently, Master volume controls the overall unit level, while a three-way toggle switch gives even more control for each mid-range section.

With a total of 6 different mid frequencies at your disposal, the pedal allows you to create and tailor your tone to perfection. From a crisp, punchy clean preamp to obliterating high gain distortion and everything in between, the B7K Ultra is a universal tone crafting machine.

Designed for both studio and live use, B7K Ultra will take your direct sound to a whole new level.

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