Summit Audio MPC-100A Single Channel Tube Mic Preamp and CompressorThe MPC 100A is a tube mic preamp and compressor. Three tube gain stages allow you to create realistic and natural harmonic tone that can help make the often 2 dimensional sound of digital come to life. Clean lines and dedicated, simple to use controls are the key to a great piece of gear. The MPC 100A is an intuitive extension of any studio environment. The MPC 100A features one of Summit's fastest selectable compressors. Perfect for tracking