The DOD Envelope Filter 440 Guitar Effects Pedal is a filter guitar effects pedal, featuring an up/down switch, with true bypass, a crisp blue status LED, and housed in an aluminium chassis. The DOD 440 makes your guitar speak with vowel-like sounds, and cry with slow-filter sweeps that react to your pick attack. The 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 DOD Envelope Filter 440 (2014) 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. Range controls the range of movement of the envelope's sweep. The Voice switch allows you to choose which part of the filter sweep you want to emphasize. True bypass allows your guitar tone to remain pristine even when the new DOD 440 is off. The modern 9V DC power supply input makes the pedal more pedalboard friendly.

The main features of the DOD 440 Envelope Filter include:

• Classic funky quack or swept filter tones that react to your picking dynamics
• New Up/Down switch allows you to choose which part of the sweep to emphasize
• True bypass
• 9V DC power supply jack
• Crisp blue status LED
• Light aluminium chassis
• Dimensions: 4.68" x 2.63"x 2.25"
• Weight: 0.281 kg
• Input: 1/4" Instrument
• Input Impedance: 1M Ohm
• Output: 1/4" Instrument
• Power Supply: 9V Alkaline Dry Battery; PS0913DC power supply