How important are quality compressors to the mixdown process for rock n roll? I love the subtle ways that a compressor can fool the ear, but I'm far from an expert on some of the tricks of the trade. Which compression techniques do you find to be the most useful? Are there certain tricks you almost ALWAYS use? Some Examples of interesting methods I've read about or tried myself: 1. Compress the Bass Guitar and feed the Kick drum to the sidechain. 2. Subgroup guitars and then run through a stereo comp that is keyed by the lead vocal. 2. Mult the Bass, run the first channel through the comp and feed the direct out of the second channel to the key input. Take the second channel out of the Stereo bus and Boost specific low frequencies that you want to compress more than others (basically works like a de-esser for low freqs). Any other ways that you like to use compressors? The more unorthodox the better.