Four processors add up to one superb channel strip. The dbx 286s Microphone Preamp & Channel Strip Processor is a complete solution for getting great sound. Youll get crystal clear sound and the control to adapt to any recording application. Make your sound a cut above the rest. Whatever the sound source take advantage of a compressor de-esser enhancer and expander/gate to perfect your sound. 48V phantom power and an 80 Hz cut off high pass filter ensure you can get a signal from any mic and eliminate low frequency hum or wind noise.