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Midas 500 Series 502 Modular Microphone Preamplifier with Classic XL4 Filters

SKU: MI502 MFR: 000-E8H00-00010
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Key Features

  • Achieve pristine sound quality with this Midas preamp, perfect for studio recording.
  • Enjoy an ultra-wide gain range for versatile use, from vocals to dynamic instruments.
  • Classic XL4 filters ensure low noise and clean audio, ideal for critical recordings.
  • Precisely match impedance for optimal mic performance, enhancing signal clarity.
  • Seamless connectivity with balanced inputs/outputs, fitting any professional setup.
  • Built tough for lasting reliability, this Midas microphone preamplifier stands the test of time.
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Special Order?Estimated to Ship: 08/18/2025
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Midas 500 Series 502 Modular Microphone Preamplifier with Classic XL4 Filters Specifications

  • Controls

    Phantom Power: 48 V switch Input Gain, Mic/Line: 12-position rotary switch, 0 to 60 dB knob
    Polarity: 0/180 Degree switch
    Low-Pass Filter: In/out switch, frequency knob
    High-Pass Filter: In/out switch, frequency knob
    Output Trim / Line Gain Trim: +/-20 dB knob
    Output Type (Electronic or Transformer): Electronic / transformer switch

  • Inputs and Outputs

    Input: Mono, balanced mic or line
    Output: Mono, balanced via electronic or transformer

  • Noise

    Noise at Unity Gain: -97 dBu (22 Hz to 22 kHz)
    Mic EIN Noise: -127 dBu (22 Hz to 22 kHz, at +60 dB gain, 150-Ohm source)

  • CMRR

    Unity Gain (1 kHz): -70 dB (typical)
    +60 dB Gain (1 kHz): -100 dB (typical)

  • Input Impedance

    10 kOhms (1 kHz)

  • Frequency Response

    Electronic Output: 20 Hz to 40 kHz (+/-0.5 dB)
    Transformer Output: 20 Hz to 20 kHz (+/-0.5 dB)

  • Distortion

    Distortion (electronic output at unity gain, 1 kHz)
    0 dBu: <0.005%
    +10 dBu: <0.005%
    +20 dBu: <0.01%
    Distortion (transformer output at unity gain, 1 kHz)
    0 dBu: <0.01%
    +10 dBu: <0.01%
    +20 dBu: <0.02%

  • Maximum Input Level

    +24 dBu (1 kHz)

  • Maximum Output Level

    Electronic: +26 dBu (1 kHz)
    Transformer: +21 dBu (1 kHz)

  • Output Impedance

    50 Ohms (1 kHz)

  • Filters

    Low Pass: 1 to 40 kHz, slope = 12 dB per octave
    High Pass: 10 to 400 Hz, slope = 12 dB per octave

  • Meters

    Input and Output Meters: 11 segment, -20 to +20 dBu in 4 dB steps

  • Power

    Voltage: +16 V and -16 V
    Power Consumption: 100 mA, 3.2 W

  • Dimensions (H x W x D)

    5.2 x 1.5 x 6.9" (132 x 38 x 174mm)

  • Weight

    1.5 lb (0.7kg)

  • UPC Code

    653341353238

About Midas 500 Series 502 Modular Microphone Preamplifier with Classic XL4 Filters

What sets the 500 Series 502 Modular Microphone Preamplifier apart is its embodiment of MIDAS's commitment to audio excellence. This high-quality, professional-grade preamplifier is a testament to MIDAS's legacy, offering the revered MIDAS sound in a compact, modular design that integrates seamlessly with mobile or recording systems. When paired with the LEGEND L10 or L6 500 Series Rackmount Chassis, the 502 becomes the quintessential component for audio professionals seeking the unparalleled MIDAS audio experience in a versatile format.

The 502 preamplifier is renowned for its award-winning design, which has been meticulously refined with four discrete ultra-low noise input transistors. This enhancement ensures an even more transparent and ultra-low noise output, capturing the full essence of the source with impeccable clarity. The MIDAS sound, celebrated for its warmth and depth, has graced countless live performances and recordings, delivering a sound quality that is both organic and precise.

Engineers will appreciate the "Sweet Forgiveness" of the 502's robust and overload-tolerant design. The preamp's input stage accepts signal levels up to +24 dBu without the need for a pad, and features a soft clipping characteristic that adds a touch of harmonics for a crystal-clear, audiophile-grade reproduction with a hint of vintage charm.

The 502 also revives the classic MIDAS XL4 Filters, which have been a cornerstone of the brand's sonic identity. The low pass filter can be adjusted from 1 kHz to 40 kHz, and the high pass filter from 10 Hz to 400 Hz, allowing for precise sculpting of the audio signal. These filters contribute to the preamp's flexibility and ease of use, making it a go-to choice for professionals.

For output options, the 502 offers selectable balanced outputs. The default electronically balanced output delivers a pristine signal at high levels, while the optional discrete transistor-driven transformer balanced output stage, engaged via the TX switch, provides a more vintage sound with added coloration when driven.

Precision LED I/O metering is a standout feature, with an 11-segment rotary LED meter providing accurate input metering and a similar meter for output trim adjustment. The 502's high accuracy I/O rotary controls include a 12-position gain switch and a fully variable output trim potentiometer, offering a total maximum gain of +80 dB, accommodating even the most sensitive ribbon microphones.

Illuminated switches enhance the user experience, offering visual confirmation of the preamp's status. These include switches for the low and high pass filters, phase reverse, +48V phantom power, and the output transformer selector. The 502's thoughtful design ensures that all preamp parameters are easily monitored at a glance.

In summary, the 500 Series 502 Modular Microphone Preamplifier is a reliable, durable, and innovative solution for audio professionals who demand the best. Its solid-state design and classic filtering options make it a superior choice over alternative preamplifiers, ensuring that the MIDAS sound remains a staple in studios and live rigs worldwide.

Midas 500 Series 502 Modular Microphone Preamplifier with Classic XL4 Filters Features

  • High performance, compact 500 Series premium MIDAS microphone/line preamplifier
  • Award-winning MIDAS amp has been enhanced with quad discrete ultra low noise input transistors
  • Legendary MIDAS input allows up to +24 dBu signal levels with no pad while featuring the much loved soft clipping characteristic
  • Classic MIDAS XL4 swept low and high pass filters with independent selection switches
  • Switchable electronic or discrete transistor driven transformer balanced output for sonic flexibility
  • Unique twin precision 11 segment LED circular input and output level metering
  • High accuracy rotary switch gain control with 60 dB range in 5 dB steps
  • Output gain trim with +/-20 dB range controls input and output stage colouration
  • Total gain range is an amazing -20 dB to +80 dB easily accommodating low output mics
  • Large gain trim knobs provide precise control of input and output gains
  • Illuminated switches for filters, +48V, polarity reverse and electronic/transformer output select
  • Power up mute relays prevent switch on thumps
  • Premium quality components throughout for a crystal-clear audiophile signal path
  • Designed and engineered in the U.K.

Product Documents

User Manual

Key Features

  • Achieve pristine sound quality with this Midas preamp, perfect for studio recording.
  • Enjoy an ultra-wide gain range for versatile use, from vocals to dynamic instruments.
  • Classic XL4 filters ensure low noise and clean audio, ideal for critical recordings.
  • Precisely match impedance for optimal mic performance, enhancing signal clarity.
  • Seamless connectivity with balanced inputs/outputs, fitting any professional setup.
  • Built tough for lasting reliability, this Midas microphone preamplifier stands the test of time.

What's in the box:

  • 502 Modular Microphone Preamplifier with Classic XL4 Filters
  • Midas 3 Year Limited Warranty (On Registration)