Pre-Owned Chase Bliss/Benson Automatone Preamp


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Chase Bliss/Benson Automatone Preamp MK II

Preamp MKII: The Ultimate Drive, Filtering, and Fuzz Solution

Craft Your Dream Drives

The Preamp MKII is the ultimate do-it-all solution for drive, filtering, and fuzz needs. This versatile pedal puts the power of circuit customization in your hands. With its ability to replicate your dream drives and fine-tune every aspect of your signal, the Preamp MKII is a playground for tone enthusiasts. Whether you seek vintage warmth, aggressive fuzz, or anything in between, this pedal has got you covered.

Responsive and Versatile Preamp

Built around the front-end circuitry of a Chimera tube amp, the Preamp MKII utilizes FET transistors for the 12AX7s triode stages, resulting in a highly responsive and versatile breakup. The rich harmonics and musical EQ reminiscent of Benson amplifiers are at your disposal. Inject a bit of asymmetry and edge into your sound with Silicon and Germanium diodes, and move and mold your mids with variable resonance and routing. Jump between custom presets with ease using the Jump function.

Expand and Integrate with Precision

The Preamp MKII goes beyond its exceptional analog circuitry by integrating motorized faders that respond to preset changes and external control signals. While every control is connected to a digital brain, the signal path remains 100% analog, ensuring pristine sound quality. This pedal is fully equipped with MIDI, CV, and Expression control options, allowing for seamless integration with other gear. With 30 internal presets and true bypass, the Preamp MKII offers a wealth of possibilities in a compact and intuitive package.


  • I/O: Mono
  • Presets: 30
  • MIDI: PC, CC
  • CV Control: Yes
  • Expression Control: Yes
  • Signal Path: All-analog
  • Bypass: True Bypass
  • Dimensions: 5.75" x 6.5" x 2.5"
  • Power: 9V Center Negative, ~500 mA

SN: 04263



This pedal works nicely as intended and is in excellent condition, exhibiting almost no external wear as can be seen in photos.  Manual, box and fader protector are included. 

*This item ships fully insured with signature required*

*** This item is at Five Star Guitars on consignment. As a result, all sales are final.***

Type: Effects