Channel Strip with Tube Microphone Preamp, Optical Compressor, and Semi-parametric EqualizerThe ART Pro Channel II offers fantastic value for money, with serious high end components and the myriad features you would expect from ART. Add that tube warmth to any microphone, smooth it out with the inbuilt optical compressor, and tweak it with the impressive 4-band parametric EQ. This combination of powerful processing features gives you complete control over your sound. As if that wasn't enough, add any outboard processor to the signal chain using not one, but TWO insert loops to get even more out of your sound.