The Ampetronic MP221 is a superb Microphone Preamplifier Unit, primarily designed to add flexibility to Ampetronic Induction Loop installations. Built to broadcast standards, it can also be used in other professional audio systems where the control and mix of audio signals is required.

The MP221 is a four input preamplifier, featuring 2 XLR microphone inputs with phantom power, 1 line level input for balanced or unbalanced connection and a twin unbalanced phono input. The single electronically balanced output can be connected to balanced or unbalanced loads. The inputs are fully protected. In the event of an overload condition of any amplifier section, the overload warning LED will illuminate.