3 ms·Because it basically is a low-pass filter. http://i.imgur.com/OqEks7A.jpg http://i.imgur.com/OqEks7A.jpgby Avery3R 9y agoBecause it basically is a low-pass filter. http://i.imgur.com/OqEks7A.jpg http://i.imgur.com/OqEks7A.jpg