Krohn Hite 3322

Variable Dual Channel Electronic Filter The 3322 Variable Dual Channel Electronic Filter is an all solid state, variable electronic filter that is digitally tuned over the range from 0.001Hz to 99.9kHz in six bands. This unit has an attenuation slope of 48 dB per octave in low-pass or high pass mode and 24 dB per octave for band-pass mode. When the channels are connected in parallel, the attenuation slope is 24 dB per octave in Band-reject mode.