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EBS ValveDrive DI Bass Tube Preamp/Overdrive Pedal

ValveDrive DI Bass Tube Preamp/Overdrive Pedal, Use as Preamp or Overdrive Pedal, Vintage or Modern Tube Sound, 60 dB Ultra High Gain Distortion, Balanced Floating XLR-Output, Low-Impedance 1/4" Output


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Discounted Price $469.99
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Discounted Price $469.99
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The EBS ValveDrive DI offers the possibility for classic and traditional warm tube sounds up to hard and pure tube distortion.

Sing or Scream!
The EBS ValveDrive DI tube preamp/overdrive pedal can make your bass either glow or growl, whether you want your instrument to sing or scream. The EBS Valve Drive DI delivers everything, from classic tube warmth to hard and pure tube distortion. It is a classic concept with an easy dial-in design.

Use as Preamp.
With the pedals Gain at modest setting, and the Volume cranked up, the ValveDrive will turn your solid-state amp into a nice warm tube amp. It will turn any dry solid state tone into full-bodied, warm and beefy tone with a nice presence of tube compression.

Use as a Distortion or Overdrive.
Simply turn up the Gain more and the Valve Drive DI create a nice overdrive/distortion. Switch between Vintage or Normal character, and use the knobs to dial in your sound. Remember that the 'flat' setting on the Valve Drive is when Bass and Treble is turned all the way down, and Mid at center position.

New Outputs for Extended Use.
The main new benefit with the EBS ValveDrive DI is the XLR-output, offering a balanced floating signal that allows you to plug the pedal straight into the mixing console in the studio or at the gig. Add to that, the former standard passive output has turned into a low-impedance output so you can use the ValveDrive DI as a stand-alone preamp with an external power amp to give you the pure ValveDrive tone right out of your speakers.

New Powering Technique.
There are plenty of pedals with a tube in it, but few deliver the warm fat tone of a tube amp. The original EBS ValveDrive was powered by a 12V AC power supply converted to high voltage inside to give the tube the push it needs to deliver real tube distortion. EBS has developed the ValveDrive DI to do the same using a9V DC power supply. The benefit is a pedal much more compatible with standard power supplies.

The Tube.
The EBS ValveDrive DI is equipped with a superior quality tube.

Included Accessories.
The EBS ValveDrive DI comes with a 9V DC power included.


  • Use as Preamp or Overdrive Pedal
  • Vintage or Modern Tube Sound
  • Balanced Floating XLR-Output
  • Low-Impedance 1/4" Output
  • 60 dB Ultra High Gain Distortion
  • Volume, Treble, Middle, Bass & Gain Controls
  • EBS 9V DC Power Supply Included

Get your EBS ValveDrive DI Bass Tube Preamp/Overdrive Pedal today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Effects Pedal
  • EBS 9V DC Power Supply

Testing EBS Bass Drive Preamp/DI


Still no live gigs yet so I decided to test the EBS Valve Drive Bass Preamp/DI. I used several EBS (a Swedish company) pedals years ago and EBS was once endorsed by Marcus Miller! I would tend to call the Valve Drive an actual bass preamp as opposed to a bass preamp pedal. The feature that grabbed my attention was a single 12AX-7 tube (aka Valve). Interesting enough the bass and treble were flat all the way to the left and the mid was flat at 12:00. The more you turn up the gain to the right the more distortion you will get. Since I play clean finger style and slap I kept the gain at about 9:00. You can see the settings that worked best for me in the photo. I also preferred Modern so the Vintage foot switch. I pulled out my goto Sadowsky bass. I first tested the EBS Valve Drive in my Mac home studio using headphones, DarkGlass compressor, 3Leaf Audio Enabler, and Radial Mix Blender. I was very surprised how quiet the Valve Drive was, especially since there is a tube in the signal path. I first played alone and then cued up some disco/funk and 80's covers. It was easy to find the sweet spot that works best for me with this preamp and I was happy with what I was hearing. Next I plugged the Valve Drive into Aguilar TH700 and AG700 amps with an SL410 cab. The Valve Drive seemed to warm up both the TH700 and AG700 class D amps. For those familiar with Aguilar, unfortunately it did not sound like the mighty preamp tube section in the DB750/DB751, but does add a nice warmth to class D amps. I plan to use the Valve Drive in a live situation whenever the pandemic is over and really push it. I believe this preamp is worth checking out for those with micro class D bass amps. Since bass tone is pretty much subjective let your own ears be the judge. For me the Bass Drive receives 5 stars!



ValveDrive DI Bass Tube Preamp/Overdrive Pedal

5.0 1


Effect Type Preamp/Overdrive
Inputs 1 x 1/4" Input
Outputs 1 x 1/4" Output, 1 x XLR Out
True Bypass Yes
Control Layout Volume Knob, Treble Knob, Middle Knob, Bass Knob, Gain Knob, -10 dB Pad Button, Ground Lift Button, Vintage Footswitch, Bypass Footswitch
Battery Power No
Power Supply Type 9V DC 700 mA (Power Supply Included)
Power Supply Included Yes
Other Features Tube Type: Ruby Tubes 12AX7 AC5 HG+
Weight 2.1 lbs.
Dimensions 5.3 x 3.0 x 6.5 inches (WxHxD)
Model ValveDrive DI
Information not available

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