Sound Devices MM-1 Single Channel Portable Microphone Preamplifier with Headphone Monitor

SKU: SDMM1 MFR: MM-1
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Key Features

  • Achieve pristine sound quality with this portable microphone preamplifier for recording.
  • Utilize the MM-1's EQ control for precise audio shaping in any live sound environment.
  • Enjoy low noise performance, ideal for capturing clean recordings with your mixer setup.
  • Durable build ensures reliable performance for your PA system, gig after gig.
  • Seamless USB interface allows easy integration with your recording mixer and software.
  • Perfect for field recording; get phantom power and T-power for condenser mics on location.
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Sound Devices MM-1 Specifications

  • Gain: Mic - Line

    0dB to 66dB input to output, switch selectable

  • Gain Accuracy: Mic - Line

    +0.6, -0.1dB with reference to front panel gain markings (150Ohm source, 100k load impedances)

  • Frequency Response: Mic - Line

    20Hz -20kHz, +0.1, -0.5dB, -1 dB at 50kHz (relative to 1kHz level with 150Ohm source)

  • Equivalent Input Noise: Mic - Line

    -126dBu (-128dBV) maximum (150Ohm source, flat weighting, 22Hz - 22kHz band- width gain setting 36dB or greater)

  • Output Clipping Level: Line

    +22dBu minimum with 100kOhm load
    +20dBu minimum with 600Ohm load

  • Input Clipping Level: Mic

    +4dBu minimum at the 0 or +18dB gain setting

  • Dynamic Range: Mic to Line

    122dB minimum at the +18dB gain setting

  • THD + Noise

    0.05% maximum (from 50Hz - 22kHz at +4 dBu output level, 22Hz - 22kHz filter bandwidth, +46dB gain setting

  • Common Mode Rejection Ratio

    100dB minimum at 80Hz
    60dB minimum at 10kHz

  • Input: Mic

    Transformer-balanced, 2kOhm input impedance

  • Input: Monitor

    Electronically-balanced, 22kOhm input impedance

  • Output: Line

    Transformer-balanced, 130Ohm output impedance

  • Headphone Output Impedance

    Unbalanced, 200Ohms

  • Frequency Response: Monitor In

    10Hz - 50kHz, +/-0.5dB, gain at 50%

  • Frequency Response: headphones

    10Hz - 50kHz, +/-0.5dB, gain at 50%

  • Input Clipping Level: Monitor In

    Greater than +30dBu

  • High-Pass Filter

    80Hz or 160Hz (switch selectable), 6dB per octave

  • Phantom Power

    12V or 48V (switch selectable), will supply 10mA per DIN 45 596 specification

  • T-Power

    12 V via 180Ohm resistors, will supply 10mA

  • Limiter

    Limits to +17dBu output level, 10:1 limiting ratio
    5 ms attack time, 100 ms release time
    Amber/Red LED indicates limiting/clipping

  • Internal Voltage Rails

    +/-15V, regulated

  • Power

    Internal: 2 x AA batteries
    External: 5-17 VDC via threaded coaxial jack, (5.5 mm outer diameter, 2.1mm inner diameter), pin positive, sleeve negative
    Voltages above 17 VDC cause no damage to unit but will open an internal poly fuse. Poly fuse will reset when voltage is removed.

  • Polarity

    All inputs to all outputs are non-inverting
    XLR - pin-2 = hot, pin-3 = cold, pin-1 is ground
    TRS - Tip = hot, ring = cold, sleeve = ground

  • Dimensions (H x W x D)

    1.95 x 3.75 x 6.55" / 4.95 x 9.53 x 16.64cm

  • Weight

    1.42lbs / 0.64kg

  • UPC Code

    859108005420

About Sound Devices MM-1

How can you elevate your audio recording and monitoring experience The MM-1 Single Channel Portable Microphone Preamplifier with Headphone Monitor is the answer for professionals seeking studio-quality sound in a compact, rugged package. This durable preamplifier is designed to thrive in the high-pressure environments of radio, television, and multimedia productions, offering an unparalleled combination of high-quality analog circuitry and practical functionality.

Crafted by Sound Devices, a brand synonymous with professional audio equipment, the MM-1 stands out with its exceptional audio fidelity. It features a no-compromise microphone preamplifier that includes phantom power for condenser microphones, a high-pass filter to eliminate unwanted low-frequency noise, and a built-in limiter to protect against signal clipping. These features ensure that your recordings are crystal clear and accurately capture the intended sound.

Versatility is at the heart of the MM-1, with its ability to provide a headphone level signal for real-time audio monitoring. This is crucial for professionals who need to make on-the-fly adjustments to ensure the audio quality is perfect during live performances, studio recording sessions, or broadcasting scenarios. Additionally, the MM-1 offers two bus outputs for flexible signal routing.

The MM-1's portability is a game-changer for those who work in dynamic and challenging locations. Whether you're involved in complex broadcast remotes, theatrical productions, or intricate intercom setups, this preamplifier is engineered to deliver consistent, high-performance audio.

In summary, the MM-1 Single Channel Portable Microphone Preamplifier with Headphone Monitor is a professional-grade tool that offers clear, accurate sound reproduction and real-time audio monitoring in a durable, portable form factor. It's an essential piece of equipment for any serious audio professional looking to capture and monitor sound with confidence and precision.

Sound Devices MM-1 Features

  • Maximum of 66 dB of gain in eleven steps for accurate, repeatable gain settings
  • Wide dynamic range and audio bandwidth
  • High immunity to RF interference
  • Transformer-balanced input and output using premium Lundahl input transformer and custom-designed output transformer
  • High-current line output driver capable of driving very long cable runs
  • Two-position high pass filter at 80Hz and 160Hz
  • Selectable 48-volt or 12-volt phantom or T-powering
  • Virtually "unclippable" dual-stage opto-isolator peak limiter
  • Monitor preamp audio and line-level monitor audio
  • Front panel headphone connector
  • Front panel headphone level control
  • Separate, front panel monitor level control
  • Easy access battery compartment (2 x AA) with external DC power connector (5 - 17 VDC)
  • High-strength extruded aluminum chassis with metal knobs and protective end rails
  • Removable belt clip for easy mounting

Product Documents

User Manual

Key Features

  • Achieve pristine sound quality with this portable microphone preamplifier for recording.
  • Utilize the MM-1's EQ control for precise audio shaping in any live sound environment.
  • Enjoy low noise performance, ideal for capturing clean recordings with your mixer setup.
  • Durable build ensures reliable performance for your PA system, gig after gig.
  • Seamless USB interface allows easy integration with your recording mixer and software.
  • Perfect for field recording; get phantom power and T-power for condenser mics on location.

What's in the box:

  • Sound Devices MM-1 Single Channel Portable Microphone Preamplifier with Headphone Monitor
  • Mating DC Coaxial Power Connector
  • 4x Rubber Feet
  • Sound Devices 2 Year Warranty