The 440 has all of the quack, squee, squonk, chicka, mwomp, and weeeooow, that you could ask for. It works equally well on guitar, bass, and keys. Use out for funky chordal work, simulated wah, or trippy drawn-out filter sweeps. While 440 is a faithful recreation of the vintage 440, the addition of the up/down toggle gives it a modern sonic twist.

That's right, we know how you like it. The DOD 440's new addition of the up and down switch lets you choose which part of the sweep you want to emphasize. Guitarists will love the "UP" setting for classic envelope quack. Bassists will love the "DOWN" setting for big dub sub thunder. The 440 is back and the neighborhood will never be the same. The DOD Envelope Filter 440 has Level and Range controls. Level controls the sensitivity of the envelope; adjust this control to tailor the triggering of the filter based upon your pick attack. With a higher sensitivity, a lower signal will affect the envelope's effect. In other words, with a higher sensitivity you don't have to pluck as hard to make the effect audible. 

Speak with vowel-like sounds, cry with slow-filter sweeps that react to your pick attack

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