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Everything In Music Since 1958
Everything In Music Since 1958

Darkglass Electronics Microtubes X Ultra Bass Preamp Pedal

Original price $579.99
Original price $579.99 - Original price $579.99
Original price $579.99
Current price $449.99
$449.99 - $449.99
Current price $449.99
♫ In stock
About Inventory Status

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In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.

📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.

Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.

Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.

█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions

Call or text us at 301-946-8808.

New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.

Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.

Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.

Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.

B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

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Get A Versatile Yet Modern Bass Preamp Pedal With The Darkglass Electronics Microtubes X Ultra Preamp Pedal

The Microtubes X Ultra greatly expands on the already immense versatility of the Microtubes X7. Featuring all the great controls that its predecessor has that allows users to select what frequencies they want to compress and saturate for the low and treble respectively, but with four major additions providing an additional layer of flexibility, while maintaining the same compact footprint, making it an extremely complete tool for the modern bassist.


  • Low Shelf, 250 Hz, 500 Hz, 1.5kHz, 3kHz, and High Shelf for ultimate character sculpting over the mid register


  • Darkglass' award-winning cabinet simulation module has been added to the already uber versatile mulitband distortion engine and graphic equalizer making it a complete rig-in-a-box for studio and live performing


  • Perfect for quiet practice, you can now connect your PC or mobile device to your pedal to play along with your favorite songs, and backing tracks while using the headphone output!


  • Pressing on the Distortion footswitch will bypass the low pass filter, leaving the full range, clean signal, compressor, EQ, and cab-sim engaged so you can now switch from a crystal clean to massive distortion with a simple stomp. 


  • High Pass Frequency: Controls the cut off frequency to be distorted, ranging from 100Hz (for thicker, fuzzier saturation) or 1kHz for ultra sharp definition.
  • High Drive: Sets the amount of distortion for the high pass side.
  • High Level: Sets the output volume of the distorted high-pass signal.
  • Low Pass Frequency: Controls the cut off frequency to be mixed back to the high pass side. Ranging from 50 Hz (for only sub bass) and 500Hz to preserve some clean mids
  • Low Comp: This control is also used to control the compression amount when the compressor is enabled for clean signal
  • Low Level: Sets the output volume of the low pass signal


  • Master: +/- 12db; Sets the overall volume of the unit
  • Low Shelf: +/- 12db at 80Hz
  • 250 Hz: +/- 12db
  • 500 Hz: +/- 12db
  • 1.5kHz: +/- 12db
  • 3kHz: +/- 12db
  • High Shelf: +/- 12db at 5kHz


  • Input: 1/4" connector for the instrument
  • Input Impedance: 1 MegaOhm
  • Output: 1/4" connector for the amplifier or next effect in the chain
  • Direct Output: Balanced output via XLR connector. Cabinet simulation can be switched with the Cab Sim Push Button.
  • USB: Connect to Darkglass Suite (PC/Mac) to load impulse responses to the pedal.
  • Output Impedance: 1 KiloOhm
  • 9VDC: Center negative, regulated 9VDC only
  • Current Consumption: 200 mA


  • Width: 125 mm (4.92 in.)
  • Height: 96 mm (3.77 in.)
  • Depth: 57 mm (2.24 in.)
  • Weight: 430g (0.94 lbs)

Manufacturer: DarkGlass Electronics
Model: MXU
SKU: I616119-N-1-WHXB
UPC: 6430054580311

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