Sound Devices MixPre-D Compact Field Mixer


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  • The MixPre-D sets a new standard for compact, high-performance portable audio mixers. Designed specifically for audio professionals needing the most flexible connectivity, the MixPre-D is ideal for any production application where capturing great sound is important, but size and weight are a concern.

    At the heart of the MixPre-D are two studio-grade mic/line inputs with limiters, high-pass filters and available phantom power. Inputs can be linked in standard or MS mode for stereo recording applications. All of these input functions are configured with front panel controls.

    Flexible Outputs

    To accommodate the increasing variety of cameras and devices used in production, the MixPre-D has incredible output flexibility. Outputs include balanced mic/line XLR, digital AES (XLR), dedicated consumer mic-level on a locking TA3 connector (designed specifically for DSLR-type inputs) and an aux-level output on 3.5 mm connection.

    USB Audio Interface

    The "D" in MixPre-D indicates the infusion of extensive digital technology. In addition to 24-bit AES digital outputs, USB audio streaming is provided for Mac OS, Windows or Linux computers. When the MixPre-D is connected to a computer with a USB cable, the operating system recognizes it as a USB Audio Class compliant device. No driver installation is required.

    Additional Features

    A wide range of additional features in the MixPre-D make it a perfect complement to larger mixers, such as the Sound Devices 302 Compact Production Field Mixer and 552 Portable Production Mixer. These features include: MS stereo matrix, tone oscillator, internal slate microphone, return monitoring of both analog and USB audio, high-gain headphone output and two-AA battery or external 10-18 VDC powering.

    The MixPre-D continues the heritage of Sound Devices original MixPre, which has been the go-to mixer for audio professionals that need the lightest, simplest and highest performance mixer available.


    • Transformer-balanced mic/line selectable inputs
    • 48-volt or 12-volt phantom power
    • Unclippable input peak limiters, dual-mono or stereo linked operation
    • Input panning to Left, Center, or Right outputs
    • Mid-Side Stereo (MS) matrix with width control and front-panel channel flip
    • Return can be used as ch3/ch4 aux-level inputs, selectable pan and level control
    • High-pass filters, 80 Hz or 160 Hz
    • Slate microphone and tone oscillator
    • Mic/Line/AES digital selectable outputs, digital SR of 44.1 , 48 , or 96 kHz
    • 24-bit, class-compliant USB streaming output for interconnection with Mac OS, Windows, Linux, and select iOS devices, computer audio in MixPre-D headphones
    • Dedicated mic-level output on locking TA3 connector for unbalanced camera inputs
    • Headphone monitoring of program audio or external return audio
    • Sunlight-viewable, 16-segment GaN LED output meter with adjustable brightness
    • Internal battery-power from two AA
    • External power input, 10-18 VDC
    • High-strength, extruded aluminum chassis with metal connectors
  • Frequency Response

    20Hz - 30 kHz, +0 .2, -0 .5 dB (relative to 1 kHz level with 150 ohm source, gain controls set at 50%)

    Equivalent Input Noise

    -126 dBu (-128 dBV) max . mic in to line out (150 ohm source, flat weighting, 22 Hz - 22 kHz bandwidth, gain control set at 50% or higher, phantom power off)

    Input Clipping Level [-10 dBu min . (mic level)]


    Line to Line, max: 26d

    Line to Mic, max: -14dB

    Input Clipping Level [+28 dBu min . (line level)]


    Mic to Mic, max: 26dB

    Mic to Line, max: 66dB

    Unbalanced mic TA3 relative to Line out: -36dB

    Dynamic Range 110 dB min ., mic input to line output
    THD + Noise 0 .05% max . (from 50 Hz to 22 kHz @ +4 dBu output level)
    Common Mode Rejection Ratio 100 dB min . at 80 Hz, 60 dB min . at 10 kHz
    Inputs Transformer-balanced, 2k mic input impedance, 16k line input impedance

    XLR-Line/Mic: active-balanced, 100 ohm output impedance

    XLR-AES3: balanced, 110 ohm, two-channel, on right XLR connector

    TA3: unbalanced mic-level output, pin-2 left, pin-3 right, pin-1 ground, 200 ohm output impedance

    Tape (3 .5 mm) Unbalanced, tip-left, ring-right, sleeve-ground, 2.1k ohm output impedance

    Output Noise -100 dBu (-102 dBV) max . (22 Hz - 22 kHz bandwidth, flat filter)
    High Pass Filters 80 Hz or 160 Hz (switch selectable), 6 dB per octave
    Phantom Power 12-volt through 680 ohm resistors or 48-volt through 6.8 k resistors (switch selectable)

    Threshold adjustable

    +6 dBu to +18 dBu

    20:1 limiting ratio

    1 mS attack time

    500 mS release time


    16 segment x 2 GaN (Gallium Nitride) meters, peak + VU responding


    Internal: 2 AA alkaline batteries, 4 hours life typical, no phantom power

    External: 10-17 VDC via 4-pin Hirose, pin 4 = +, pin 1 = -, completely isolated floating supply

    USB Connectivity USB class-compliant device, analog input to USB output, USB monitoring in headphones
    A/D Converter

    103 dB typical, A-weighted

    Sample rate selectable 44 .1 k, 48 k, or 96 k


    Operating: -20° C to 60° C, 0 to 95% relative humidity; (non-condensing)

    Storage: -40° C to 85°

    Weight 0 .7 kg, 1 .5 lbs with batteries
    Dimensions 43 mm x 94 mm x 140 mm (h x w x d), (1 .7” x 3 .7” x 5 .5”)
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