Behringer MDX2600 Composer Pro-XL

Interactive Reference-Class 2-Channel Expander/Gate/Compressor/ Peak Limiter with Integrated De-Esser, Dynamic Enhancer, Tube Simulation and Low Contour Filter.
Whether you're recording, mixing or mastering, the COMPOSER PRO-XL MDX2600 gives you total dynamic control. It includes all of the features you would expect from a reference class compressor-plus a voice-adaptive de-esser, a new dynamic enhancer, authentic tube emulation and much more. These are some of the indispensable tools for producing clean, consistent audio with virtually no loss in signal quality.
ATS (Authentic Tube Simulation) Tube simulation for extra warmth and transparency of classic tube circuitry
IKA characteristic of the compressor section The program-adaptive IKA compression combines the advantages of "hard knee" and "soft knee" characteristics
The MDX1600, MDX2600 and MDX4600 now all feature the revolutionary ATS, IKA, IGC, IRC and IDE circuitry plus a switchable low-contour filter that prevents pumping.