DBX 166XL Dual-Channel Compressor / Expander / Gate / PeakStop Limiter

Dbx 166XL Dual-Channel Compressor / Expander / Gate / PeakStop Limiter. 1 Compressor: Evens out volume peaks and boosts quiet audio. 2 Expander/Gate: Blocks background noise and hum during pauses. 3 PeakStopTM Limiter: Caps maximum volume to protect your speakers. 4 OverEasy Switch: Softens compression for a natural sound. 5 Auto Mode: Automatically sets attack and release times. 6 Stereo Couple Mode: Links both channels to balance the stereo image. 7 Low-Contour Filter: Prevents heavy bass from pumping the mix. 8 Sidechain Insert: Connects external gear for specialized ducking. 9 LED Metering: Shows real-time levels and gain reduction. 10 Operating Level Switch: Toggles between +4dBu professional and -10dBV consumer gear.