Tube MP/C PreAmplifier / Opto Compressor-Limiter / DIThe Tube MP C (PreAmplifier Compressor) is a multi purpose tool for audio engineering and recording. Two independent circuits featuring a tube based analog preamplifier and a VCA less compressor with optical gain reduction control are housed in one, convenient desk top chassis. Used as a mic line preamp or as a DI (direct) box, the Tube MP C is designed to work seamlessly with any recording, sound reinforcement, or electronic instrument setup. A R Ts