The MPC-100A is a single channel tube preamplifier and tube compressor/limiter accepting line, microphone, and Hi-Z input signals. Utilizing both tubes and solid state technology working in sync with the Jensen mic transformer the MPC-100A lends a detailed sound with harmonically complex overtones. The ultra-fast compressor is ideal of optimizing signals prior to entering the digital domain. Other features include impedance matching (loading) control on the Hi-Z input so passive guitars and bass pickups have a whole new level of tone control, true VU metering, and multiple outputs. And with three separate gain controls, you have endless tonal variations from clean to saturated for whatever sound you need.