Skip to main content Skip to footer

Carl Martin Classic Optical Envelope Guitar Effects Pedal   

Sku #H93934000000000

45 day price guarantee, 45 day return policy, 100% secure shopping


In Stock & Ready to Ship

Most orders placed before noon ET ship same day (except weekends and holidays)

This oversized item has special shipping requirements


Platinum Coverage: (What’s This?)
Add to list
See All Carl Martin Wah & Filter Effects Pedals
Carl Martin

An awesome pedal that offers wah effects without the wah pedal.

Carl got a call from an old guitar playing friend who said he didn't want to use his wah all the time, but wanted to have some of those effects available. Enter the Classic Optical Envelope, essentially a classic envelope filter (auto-wah utilizing the same opto-technology as the Opto-compressor) for guitar or bass, with a bunch of cool options.

The first footswitch is for fx on/off (buffered), and the second to select between the three modes (High Pass, Band Pass and Low Pass). Add to this the Level control for overall volume, Drive for how hard the auto-wah will function, Q for adjusting the size of the bandwidth, and Tone which acts as a separate Hi-pass filter, and you have complete control over your fx from vocal like tones to funky quacks and fat wows!

Housed in the cool new diecast housing with mini-knobs and cool retro color, the Classic Optical Envelope can be powered by a 9v battery, but it's always recommended to use a regulated power supply for optimum response!

  • Classic envelope filter tones with more tonal options
  • Drive, Tone and Level controls
  • Diecast housing with mini-knobs
  • Retro looks and color

Add it to your pedal board today.


Classic Optical Envelope Guitar Effects Pedal Specifications:

  • Battery: Standard 9V Alkaline battery
  • Power consumption: max. 14 mA
  • Power supply: 9 V DC (regulated), 30 mA minimum, 2.1 mm female plug, center negative (-)
  • Input: 1M Ohm
  • Output: 330 Ohm
  • S/N Ratio: 56 dB
  • Dimensions: 4.72" (W) x 3.74" (D) x 2.2" (H)
  • Weight: 0.94lb.
review resources