With so many options to choose from, I've compiled what I consider to be the 11 best variable-mu/tube compressor emulations plugins. There are plenty of excellent analog variable-mu/tube compressors and plugin emulations of such compressors. There are plenty of plugins that aim to emulate analog hardware in an attempt to make digital audio sound more like its nicer-sounding analog counterpart. Plugins are, therefore, invaluable assets for the modern audio engineer. We're currently living in the age of digital audio, and in-the-box mixing within a digital audio workstation is commonplace.