The original SSL G had fixed selections for attack, release and ratio, along with continuous controls for threshold and make-up gain. Known for its punchy, transparent tone and its ability to “glue” tracks together, SSL’s G-Series bus compressor offers what is easily one of the most sought-after sounds in modern mixing for making a mix feel “finished”. Perhaps its most charming feature is its bus compressor-especially the version found in the classic G-Series consoles. The SL 4000 from SSL could be considered the quintessential analog mixing console.