Congratulations on choosing the dbx 166XL Compressor / Gate. The 166XL provides two channels of noise gating, OverEasy® or classic hard knee compression and PeakStop® limiting to give complete control of signal dynamics to stu- dios, sound reinforcement companies, musicians, or anyone who needs quality processing quickly and easily. We recom- mend that you take a moment and read through the manual as it provides information that will assist you in using your unit to its fullest potential.