This is a single channel tube preamplifier and tube compressor/limiter all in one unit, accepting line, microphone, and Hi-Z input signals. The preamplifier provides a warm yet crisp vacuum tube tone. The compressor/limiter section has very fast attack times, making it ideal for optimizing signal prior to entering the digital domain. In addition to having superb sound and a user-friendly interface, the MPC-100A has the robust build quality consistent with the Summit Audio family of products.

Vocals and bass really shine, with the unit’s Jensen mic transformer and tubes working in sync to lend a detailed sound with harmonically complex overtones. The ultra-fast compressor makes it ideal for drums, especially kick and snare, to tame transients yet keep the body rich and full. Variable impedance (loading) on the Hi-Z input gives passive guitars and bass pickups a whole new level of tone control. Increase the loading for a minimum of resistance and the open, airy sound of your pickups working unimpeded. Turn the impedance control down and listen to the high frequencies start to attenuate in a musical way and the low frequencies get tighter and more focused as the pickups are loaded. Three separate gain controls and two driving vacuum tubes with a master output level ensure endless tonal variations.