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This is the first version of the Coopersonic Dual Valve Distortion, a pedal widely known as a key component of the Arctic Monkeys’ drive tone. It is an extremely rare pedal that is nearly impossible to find worldwide.

This early version has no model name on it. It is said that the name later evolved from “Valve Slapper” to “Dual Valve Distortion.”
Unlike later versions that run on 12V power, this unit takes direct 220V-240V mains power,

it feels as if your amp has an extra gain stage added—the drive comes on very naturally and organically.

There is an internal switch for selecting tube pin configurations, allowing the use of various tubes such as 12AX7, 6N2P, ECC83, and 5751 (lower gain). The tonal differences between tubes are said to be quite noticeable, though I haven’t personally swapped them, so I can’t comment in detail.

Works perfectly without any problems

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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Listed5 months ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • Dual Valve Distortion
Finish
  • Silver
Categories
Year
  • 2000s
Made In
  • United Kingdom

Product safety information may be available here.

Jang Hyuk's Shop

Goyang-si, Korea, Republic of
Joined Reverb:2015

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