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Darkglass Darkglass

Darkglass Microtubes B7K V2 Bass Preamp Pedal

Q&A SKU #L73533000000000
449.99 $449.99
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A versatile preamp for adding more color and power to bass licks on stage or in the studio.

The Microtubes B7K takes the powerful dynamic saturation circuit of their B3K, and adds a 4-band equalizer and a balanced line driver for even greater versatility. Designed for both studio and live use, it will take your direct sound to a whole new level.

The B7K's Grunt Switch sets the amount of low-frequency content to saturate by selecting between three different bass boost levels before the clipping stage. Its Attack Switch sets the amount of treble content to saturate. It has a Boost setting to emphasize the treble content with extra clarity and presence. The Flat position leaves this register untouched, and 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,


  • Level knob for volume control of overdriven signal
  • Drive knob for amount of saturation of overdriven signal
  • Blend knob for mixing clean input with overdriven signal
  • Low (+/-12dB @ 100Hz), Low Mid (+/-12dB @1kHz), Hi Mids (+/-12dB @ 2.8kHz), Treble (+/-12dB @ 5kHz)
  • Grunt Switch to set amount of low-frequency with 3 different bass boost levels before clipping
  • Attack Switch to set amount of treble content with Flat for untouched, Cut for reduction of high-frequencies
  • Parallel Output for passthrough of input signal for parallel processing
    Direct Output for balanced version of 1/4" output for running into PAs or studio mixing consoles

Boost your bass tone with this Darkglass preamp.


Microtubes B7K V2 Bass Preamp Pedal Specifications:

Dimensions: 2 x 10.7 cm (4.72" x 4.21")

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