Darkglass Electronics Microtubes B7K Analog Bass Preamp Pedal


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MSRP: $449.95 $329.95 Save : $120.00 (27%)
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MSRP: $449.95 $329.95 Save : $120.00 (27%)
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From the studio to the stage, the Darkglass Electronics Microtube B7K Analog Bass Preamp combines all that brutal, clear overdriven tone of the B3K with an onboard 4-band EQ and additional outputs for even more flexibility!

The Microtubes B7K takes the powerful dynamic saturation circuit of the B3K and adds a four-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.


  • Level: Sets the volume of the overdriven signal.
  • Drive: Sets the amount of saturation in the overdriven signal.
  • 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.
  • 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!
  • Low: +-12dB @ 100Hz / Low Mid: +-12dB @ 1kHz
  • Hi Mid: +-12dB @ 2.8kHz / Treble: +-12dB @ 5kHz
  • Direct Output: A balanced version of the 1/4" output, useful for running into PA's or studio mixing consoles.

Get your Darkglass Electronics Microtubes B7K Analog Bass Preamp Pedal today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.

WARNING: The Microtubes B7K has a current draw of 30mA. 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.

Things You Will Get:

  • Bass Effect Pedal


by PowerReviews
Dimensions 4.72 x 4.21 inches
Model Microtubes B7K Analog Bass Preamp