Before revision: 250px|Roll-off of a first-order low-pass filter at 6 dB/octave (20 dB/decade) A simple first-order network such as a RC circuit will have a roll-off of 20 dB/decade.
After revision: 250px|Roll-off of a first-order low-pass filter at 6 dB/octave (20 dB/decade) kya simple first-order network such as a RC circuit will have a roll-off of 20 dB/decade.