The dbx 160A is a mono compressor / limiter that takes the legendary 160 platform and cleans up the signal path and ports it over to a sturdier rackmount chassis. Tighten up the dynamics on groups and busses invisibly, dig in a little harder for kicks, snares and bass guitars with the hard knee mode, flip on "OverEasy" to ride the level on the lead vocal, and get absolutely wild effects from negative compression ratios.