Darkglass Microtubes B7K Ultra Bass Preamp Effects Pedal with Aux In

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MSRP: $599.99
You save $170.00
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The Microtubes B7K Ultra with Aux In takes the powerful Darkglass Microtubes saturation circuit and adds all the features a player will need for even greater versatility. Designed for both studio and live use, it will take your direct sound to a whole new level. It allows you to create and tailor your tone to perfection, from crisp, punchy clean preamp to obliterating high gain distortion, and everything in between. The Microtubes B7K Ultra is an universal tone crafting machine. Now with an Aux In jack to help you practice with backing tracks.



  • Four band equalizer with six selectable mid frequencies
  • XLR output with switchable cab simulation
  • Headphone output with IR cab simulation
  • Dedicated footswitch to engage the overdrive section independently
  • Master volume to control the overall unit level





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Shipping & Returns

Returns Policy

If you are not completely satisfied with one of our products, you may return it anytime within 30 days of the date of purchase for a hassle-free refund of the amount you paid for the product. Refunds do not include shipping costs. We only specify that returned product not be damaged, missing components, or manufacturer’s documentation. Any special order or non-stocking items are specifically exempted from this policy and will be assessed an appropriate restocking charge.

Shipping Policy

Interstate Music is proud to offer Free Shipping on most items with no minimum purchase. The following are the restrictions to our Free Shipping Policy:

  • Certain oversized or special-order items may not qualify for free shipping. 
  • Free Shipping is available to the 48 contiguous United States.  Alaska and Hawaii do not qualify for Free Shipping.
  • Mid to Heavyweight items will ship via UPS with delivery times between one to five days depending upon destination.
  • Lightweight items (13 ounces or less) will be shipped via USPS Priority Mail with a tracking number.  Delivery is usually within two to five days.

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Darkglass Microtubes B7K Ultra Bass Preamp Effects Pedal with Aux In

MSRP: $599.99
You save $170.00

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