Undertone Audio MPDI-4

*The MPDI-4 will not be available until September 2026. Only 50 will be produced, and most are already sold. Please place pre-orders now to ensure your allocation. Payment will not be due until the products ship. Extreme Flexibility The MPDI-4 is as musical as it is powerful and flexible. It features 4 individual Mic Preamp/DI circuits housed in a single 1RU chassis. With bypass-able transformers, switchable output headroom, and adjustable THD characteristics, the sound of the MPDI-4 can range from astonishingly pristine to warm, thick, and harmonically colorful. It may well be the only preamp that is truly perfect for every situation! Features -10 to -60 dB boost range (in stepped 5 dB increments) Switchable -20 dB input pad and -10 dB output pad Instrument DI Switchable 600 ohm output load Switchable Low impedance mode ideal for passive ribbon microphones Front panel XLR–1/4" (DI) combo input Phase reverse switch + 48 V phantom power Bypass-able input and output transformers Inputs/Outputs (all XLR): Mic-pre Input Mic-pre direct Line Output