The DBX 166XL is a versatile, two-channel dynamics processor that acts as a compressor, limiter, and expander/gate, designed for use in both studio recording and live sound applications. Features: -Compressor/Limiter: Controls the dynamic range of audio signals to prevent distortion and ensure consistency. -Expander/Gate: Helps to smooth out uneven levels, add sustain to instruments, and prevent unwanted background noise by controlling transients and decay tails. -Stereo/Dual-Mono Operation: Offers the flexibility to process stereo signals as a linked unit or to process two different audio sources independently. -Program-Adaptive Gating: Uses advanced timing algorithms to provide smooth, non-intrusive gating that doesn't swallow decay or reverb tails. -Classic "Auto" Mode: Provides a user-friendly way to achieve smooth, musical compression with minimal setup. -Detailed LED Displays: Precision LED meters allow for quick and accurate setup of gain reduction, compression threshold, and gate threshold. -Balanced I/O: Features balanced analog inputs and outputs on both 1/4" TRS and XLR connectors for versatile connection options Here's a link for all the specs and info: https://dbxpro.com/en/products/166xl