Download Multiband Bitcrusher:

Multiband Bitcrusher / Downsampler

The Multiband Bitcrusher effect by Hilofi is a 4-band bit reduction / downsampler vst plugin. The 4 frequency bandscan beoperated independently and processed through the bitcrusher and the downsampler. The Multiband Bitcrusher VST plugin even lets you add additional grind to each band to squash the audio signal even more!