DBX 166 two channel compressor / limiter.
Since its introduction in the mid 1970’s, the dbx 160 series has been the world’s most popular line of audio compressors. After the classic 160 (which is still used daily in many world class studios), came the 165, the 160X and the 160XT. The 160X/XT were the models that truly became the industry standard. Solid construction, fool proof operation, great sound, at-a-glance metering and a bulletproof output stage all contributed to its popularity with musicians, recording studios, consultants and installers, and broadcast media production people alike.
The 166 was created as a two-channel version of the 163A, with additional features and controls. The 166 later became the 166A with a few changes to the controls and the manufacturing. The 266A was a cheaper (and lower-quality) version of the 166A, with no “Peakstop” limiter. Those became the 166XL and 266XL when they went to being made with SMT components. The 1066 was designed to be a step up (in quality and price) from the 166XL. As of 2012 the newest suffix for the 166 and 266 lines is “XS”, and dbx has informed me that the only difference between XS and XL is cosmetics and packaging.
No cables included.