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Average Price: $3,795
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$599
$2000+
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Based on price data from 1 merchant for "Undertone Audio UnderToneAudio MPDI-4 Four-Channel Microphone Preamp". Prices shown reflect NEW condition. Tracking began May 28, 2026.
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Description
Unleash the full potential of your studio recordings with the Undertone Audio MPDI-4 Four-Channel Microphone Preamp, a powerhouse of versatility and sonic excellence. This four-channel preamp offers a dynamic range of creative possibilities, seamlessly blending astonishingly pristine clarity with the warmth and depth of vintage tones. Whether you're capturing the subtle nuances of a vocal performance or the raw power of a live band, the MPDI-4 delivers with remarkable precision.
Housed in a compact 1RU chassis, the MPDI-4 is designed for the modern studio that demands both space efficiency and high-quality performance. With its bypassable transformers and switchable output headroom, each channel can be tailored to meet the unique demands of any recording session. The adjustable THD characteristics allow for a sound that is as clean or as harmonically rich as you desire, making it an essential tool for producers and engineers seeking to craft their signature sound.
From the inclusion of a switchable low impedance mode to optimize passive ribbon microphones, to its comprehensive input and output options, every aspect of the MPDI-4 is engineered for versatility and ease of use. Whether you're a seasoned professional or an aspiring producer, this preamp is your ticket to transforming good recordings into great ones.
Key Features:
- Four individual Mic Preamp/DI circuits in a single 1RU chassis
- Bypassable transformers for flexible sound shaping
- Switchable output headroom for tailored dynamics
- Adjustable THD characteristics for pristine to warm sound
- -10 to -60 dB boost range in stepped 5 dB increments
- Switchable -20 dB input pad and -10 dB output pad
- Instrument DI with front panel XLR–1/4" combo input
- Switchable 600 ohm output load
- Low impedance mode ideal for passive ribbon microphones
- Phase reverse switch and +48 V phantom power
- Inputs/Outputs (all XLR): Mic-pre Input and Mic-pre direct Line Output
Videos
Vintage King
Eric Valentine Introduces The UnderToneAudio MPDI-4
Eric Valentine Introduces The UnderToneAudio MPDI-4
Vintage King
Undertone Audio MPDI-4 Four Channel Mic Pre Quick n' Dirty
soundpurestudios
Undertone Audio MPDI-4 Review
MillSounds
Reviews
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Artist usage
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At 15:29 in the YouTube video titled "EPIC HOME STUDIO SETUP 2022 | Jeremy Lutito (studio tour)" by Andrew Masters, Jeremy Lutito's use of the Undertone Audio UnderToneAudio MPDI-4 Four-Channel Microphone Preamp is confirmed as it is visibly positioned below the Ampex 350 2U mic preamp.
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Undertone Audio UnderToneAudio MPDI-4 Four-Channel Microphone Preamp, it is most commonly used with the following gear.
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