Endless Field Electronics Cu Copper - Overdrive Distortion


Endless Field Electronics

Introducing the [Cu] Copper Overdrive/Distortion Effects Pedal. This high quality, 100% analog design surpasses the needs and wants of professional players and those who must have full control of their distorted sound. EFE has take extra steps to ensure uncompromising reliability. The pedals are designed and built with the highest quality components available today. Furthermore, each [Cu] is hand built and tested by an experienced engineer and a group of dedicated musicians.


From Sabbath to Mastodon, heavy distortion has been in service for nearly 40 years. Pulling inspiration form the purest roots of distortion and looking ahead to the future, [Cu] allows you to find your unique sound to author the coming decades of distortion. While [Cu] is not a modeling pedal, by combining the use of both GAIN and CLIP controls a wide breadth of distortions can be achieved. These range from the classic overdriven stacks of the 70’s to the boutique high-gain amps of today; all without coloring the integrity of your guitar’s natural tone.

How do you tune you guitar? Standard? Drop C? Lower? Endless Field Electronics thought of that too. Designed with specific components to allow for the use of low frequencies, [Cu] features a controllable dynamic EQ section. The BASS and TREBLE controls allow players to sculpt their own sound - even in lowered tunings - without losing definition.

Noise versus tone has always been a concern when it comes to high gain. Truth be told, if you play loud and heavy: you hiss. It’s a fact of life. With a turn of a pick, [Cu]’s unique NOISE control feature allows users to dial out white noise artifacts found in many high gain situations.


  • Unique Tube Distortion Circuitry
  • Adjustable noise reduction
  • Wire-free PCB design
  • Low-noise circuitry
  • Heavy-duty diecast aluminum enclosure
  • True bypass technology
  • 9 Volt Battery or Adapter Powered
  • Hand-Crafted in the USA


  • Input Impedance: 1MOhm
  • Gain: 6dB - 60dB
  • Bass Control (80Hz-400Hz): +/-20dB
  • Treble Control (1kHz-5.5KHz): +/-20dB
  • Noise Reducing Control: 12dB - Off
  • Clipping Control (2nd and 3rd Harmonics Acceleration): 6dB - 20dB
  • Volume Control: 6dB - Off
  • Output Max Load: 10kOhm
  • DC IN Voltage: 8.5V - 16V
  • Battery: (common 6F) 9V
  • Current consumption: 17mA
  • Dimensions: 4.67" x 3.98" x 2.00"
  • Weight: 11.8oz

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