BEHRINGER MULTIGATE PRO XR4400 Reference-Class 4-Channel Expander/Gate 4 high-quality expander/gate channels IRC (Interactive Ratio Control) expander/gate circuitry for virtually inaudible noise suppression Extremely short attack time (10 microsec) to capture ultra-high speed signals such as drums Parametric side chain filter with monitor function Independent Hold and Release controls for flexible envelope shaping Maximum attenuation 80 dB FlexLink system for ultimate master/slave configurations Dedicated "Traffic light" Threshold and Gain Reduction LED indicators Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors High-quality components and exceptionally rugged construction ensure long life Conceived and designed by BEHRINGER Germany The XR4400 gives you four frequency-selective UTR expanders/noise gates in a single rack space without compromising on functionality. The side chains" parametric filters allow you to fine-tune control signals so that the gate reacts only when you want it to. Separate hold and release controls and our unique FlexLink system offer additional flexibility.