Dynamic Range Compression is used in everything. Most audio editors have a “compressor effect,” and mastering it can mean the difference between an amateur and pro-level mix. To understand how it works, we need to see what exactly it does.
The DBX 1066, in my opinion, is the best compressor with the biggest bang for your buck! A dual-channel compressor/limiter/gate driven by the dbx V2 VCA. Smooth compression with brickwall limiting while maintaining full dynamic range. You can't do much better than this!
Intelligibility and Clarity of Reverberant Speech: Effects of Wide Dynamic Range Compression Release Time and Working Memory
Acoustat, a typical electrostatic panel loudspeaker, had tremendous clarity and detail but tended to beam high frequencies resulting in a narrow listening position. At one time many companies made electrostatic speakers, now only a few DIYers and Martin-Logan (a 1980s company) remain in the USA. Dynamic range compression and lack of ability to produce high SPLs, especially in the bass, ended their widespread popularity in the USA.