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UnderToneAudio MPEQ-1

19 inch rack mount Class A mic preamp, equalizer and DI

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Our Price: $2,495.00

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Product Description
Additional Information
  • Product Description

    The UnderToneAudio MPEQ-1 is the amalgamation of the UTA EQ and UTA's new custom mic pre. You can use the equalizer and the mic pre separately or as a complete channel strip.

    The mic pre has a custom input transformer and a carefully chosen output transformer. Both are optimized to accentuate the most flattering sonic qualities inherent in audio transformers.  The unique mic pre design makes both of the transformers bypass-able.  This offers users a choice between the detailed clarity of a Class-A transformer-less design or the vintage musicality of a dual transformer mic preamp.



    • -10 to -60 dB boost range (in stepped 5 dB increments)
    • Switchable 20 dB pad
    • Instrument DI
    • Front panel XLR–1/4" (DI) combo input
    • Phase reverse switch
    • + 48 V phantom power
    • +/- 10 dB trim knob
    • Bypass-able input and output transformers
    • Ability to use mic-pre and UTA EQ on seperate signals.
    • Inputs/Outputs (all XLR):
      • Mic-pre Input
      • Mic-pre direct Line Output
      • Line Input
      • EQ Line Output - w/ output transformer
      • EQ Line Output - w/o output transformer



    Input Impedance:

    • Mic In transformerless: 2K ohms 
    • MIc In 200 Ω: 2K ohms 
    • MIc In 50 Ω: 500 ohms 
    • Line In: Greater than 10K


    Output Impedance: 

    • Mic Out: 47 ohms 
    • Main Out Transformerless: 47 ohms 
    • Main Out with Transformer: 120 ohms


    Frequencey Response:

    • Mic Preamp: 10 Hz - 80 kHz +0 /-1 dB 
    • Line In/Out: 10 Hz - 50 kHz +0 /-1 dB


    Noise Floor:

    • Mic Preamp: -128 dBu (20 Hz - 20 kHz) 
    • Line Level Circuit: -91.5 dBu (20 Hz - 20 kHz)


    Max Level Before Clip:

    • Mic Preamp: +27 dBu (or better) 
    • Line Level Circuit: +27 dBu (or better)



    • Mic Preamp: .003% at +27 dBu 
    • Line Level Circuit: .015% at +27 dBu 



    • Front to Back: 12.25” (with heat sinks and knobs: 14”)   
    • Left to Right:  17.25” (with rack ears: 19”)


    Weight: 10 lbs 

  • Additional Information

    Condition New
    Chassis 19-in. Rackmount
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