Behringer Ultra-Compact Stereo Modeling Compressor  COM800 Ultra-compact 9.5" stereo modeling compressor for studio and stage applications 16 awesome preset models for the most typical compression applications (vocal, drums, guitar, keyboard, etc.) Dedicated Compressor Modeling control with LED's indicating the selected dynamics program Integrated Enhancer for brilliant, lively audio even with heavy compression IKA (Interactive Knee Adaptation) program-adaptive compression circuitry combines the advantages of hard and soft knee characteristics