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collapse expand iconDescription

The Undertone Audio MPDI-4 provides studio-quality sound in a compact, rackmountable package. With four discrete mic preamp channels and a versatile range of tonal options, the MPDI-4 is ideal for musicians and producers. Switch between pristine clarity and rich, harmonic color with the flip of a switch. An instrument DI, selectable output impedance and +48V phantom power provide flexibility for any input source. Send your signal directly to line-level devices or add texture with the transformer-coupled outputs. Housed in a single rack space, the MPDI-4 delivers premium sound in a space-efficient design. Experience four premium mic preamps in one powerful, musical unit—the MPDI-4 microphone preamp.

Undertone Audio MPDI-4 Four Channel Microphone Preamp
Undertone Audio MPDI-4 Four Channel Microphone Preamp
Undertone Audio MPDI-4 Four Channel Microphone Preamp

collapse expand iconFeatures

  • 10 to -60 dB boost range (in stepped 5dB increments)
  • Switchable -20dB input pad and -10dB 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
  • +48V phantom power
  • Bypass-able input and output transformers
  • Inputs/Outputs (all XLR):
  • Mic-pre Input
  • Mic-pre direct Line Output

collapse expand iconSpecs

  • Channels: 4-channel
  • Chasis: 19" rackmount
  • Rack spaces: 1U

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