Great automatic wah sounds of a classic envelope filter!
The DOD FX25 Envelope Filter Pedal -- a reincarnation of DOD's original envelope filter -- goes a step further, adding a blend control for great response from both guitar and bass. Added touch-sensitive wah-wah expression. 2 other controls adjust the DOD FX25's sensitivity and range thresholds.
How are you going to push the outside of the envelope if you don't HAVE an envelope? Put the thing in the cart.