Used Electro-Harmonix 8 Step Program Analog Expression Sequencer Pedal truetone v3 As you turn the "Gain"

As you turn the "Gain" up

When turned up

Added Tone knob (bass cut) for the ability to shape the low end of your guitar signal

and a brand new fourth knob (4K) that helps dial this pedal in precisely for a wider variety of amplifiers as compared to the original models

so it was built to last that long

Used Electro-Harmonix 8 Step Program Analog Expression Sequencer Pedal truetone v3 As you turn the "Gain"Mint, all original packaging, as new Attention freaks and geeks, this baby connects to another device and delivers sequencer control over parameters that respond to expression pedals or CV generators like oscillators, filters, delay parameters you name it. Set your tempo with the Rate slider or Tap Tempo footswitch, or sync to a drum machine or DAW via MIDI clock. Six Tap Tempo Divide modes provide rhythmic diversity. This thing is a tweakers delight!