Sound Devices MD-4 4x4 Analog to Dante Interface

Sound Devices MD-4 4x4 Analog to Dante Interface

Sound Devices MD-4 4x4 Analog to Dante Interface

B&H # SOMD4 MFR # MD-4
Sound Devices MD-4 4x4 Analog to Dante Interface

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Product Highlights

  • Four Channels of Analog I/O over XLR
  • Dante at 48 kHz / 24-Bit / 100 Mbps
  • Two 3.5mm Headphone Jacks
  • Single Ethernet Cable Connection
  • Route Signals to Multiple Destinations
  • Accepts Mic or Line Level Inputs
  • 8-Segment LED Meter for Each Input
  • Switchable 48V Phantom Power & HPF
  • Built-In AC and DC Power Receptacles
  • 1 RU Rackmount Unit
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Sound Devices MD-4 overview

  • 1Description

Designed to transmit and receive audio to and from Dante audio-over-Ethernet networks, the Sound Devices MD-4 is an audio interface providing four analog, electronically balanced, capacitor-coupled inputs, and outputs via 3-pin XLR connections. Each input channel sports selectable 48V phantom power, a high-pass filter, channel input select, and eight-segment LED metering.

In addition to the eight XLR jacks provided, you’ll also note two headphone terminations for private monitoring, one jack on the front panel, and one in the rear. Thus, you could route four microphones over Dante to a compatible recorder, monitor the signal through headphones, and send two output signals to monitors over XLR—and still have two line outputs to spare. This is just one of the routing options that the MD-4 permits.

An RJ45 Ethernet port is offered for Dante connections, while a factory input allows you to update application firmware over USB as necessary. Ethernet is transmitted at sample rates of 48 kHz, resolutions up to 24-bit, and data rates of 100 Mbps. A three-blade IEC receptacle is provided for AC input, though for DC you’ll also find a 4-pin XLR plug in the rear. This interface is a suitable complement for sound devices such as the Sound Devices 970 audio recorder.

Key Features at a Glance
Four front-panel, balanced, analog, mic/line level inputs with 48V phantom power and high-pass filter, selectable per channel

Inputs accept mic or line level, and appear as Dante sends (transmit)

Eight-segment LED meter for each input

Four Dante signals (receiver) to four rear-panel XLR balanced-analog outputs

Headphone monitoring with LED level meters

Front and rear-panel headphone output

Built-in AC power supply (100-240V, 50/60 Hz), or 11-18 VDC powering via 4-pin XLR

1 RU rackmount chassis

UPC: 854454006329
In the Box
Sound Devices MD-4 4x4 Analog to Dante Interface
  • Power Cord
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Sound Devices MD-4 specs

    Network & Communication
    Type Dante audio-over-Ethernet
    Bit Depth Up to 24-bit
    Sample Rate 48 kHz
    Channels 4 x Transmitter
    4 x Receiver
    Dante Audio Flows 2 x Transmitter
    2 x Receiver
    Network Interface
    Type Twisted-pair Ethernet
    Data Rate 100 Mbps (10 Mbps not supported; 1000 Mbps "GigE" Ethernet not supported, unless falls back to 100 Mbps)
    Analog Audio Inputs
    Type 4 x XLR female, mic/line, electronically balanced, capacitor coupled
    Compatibility Dynamic or phantom-powered mics; line-level sources
    Impedance 4 kOhms, nominal
    Gain 0 dB (line), 10 dB, 19 to 70 dB in 3 dB steps (20 choices total)
    Maximum Level +18, +20, or +24 dBu, configurable, 0 dB gain selected, resulting in Dante digital output level of 0 dBFS
    EIN -123 dBu, 22 kHz bandwidth, 70 dB gain, 150 Ohm source resistance
    Dynamic Range >116 dB, 0 dB gain, A-weighted
    THD + N More than 0.001% (-101 dB) at -1 dBFS, 40 dB gain, 22 kHz bandwidth
    Frequency Response 22 Hz to 22 kHz, +0.0/-0.5 dB, high-pass filters off
    High-Pass Filter -6 dB at 75 Hz, 18 dB per octave, on/off selectable per channel
    Phantom Power P48 per IEC 61938:2013 standard, 46 VDC nominal, on/off selectable per channel
    Meters 4 (with one 8-segment LED per input)
    Status LEDs 1 x Phantom power
    1 x High-pass filter
    1 x Input channel selected
    Line Outputs
    Type 4 x XLR male, analog, electronically balanced, capacitor coupled
    Intended to drive balanced or unbalanced loads of 2 kOhms or greater
    Source Impedance 200 Ohms
    Nominal Level +4, 0, or -2 dBu, selectable, reference -20 dBFS
    Maximum Level +18, +20, or +24 dBu, configurable, with 0 dBFS on Dante input
    Dynamic Range >119 dB, A-weighted
    THD+N 0.0012% (-99 dB), measured at -1 dBFS, 22 kHz bandwidth
    Frequency Response 20 Hz to 20 kHz, ±0.1 dB
    Source Mic/line inputs or line outputs, selectable as monaural or stereo
    Meters 2 x 8-segment LED
    Headphone Output
    Type Stereo (dual-channel)
    When jack on front panel is used, jack on back panel automatically disconnects
    Compatibility Stereo headphones with nominal impedance of 100 Ohms or greater
    Maximum Output Voltage 4.9 volts RMS, 1 kHz, 150 Ohm load
    Frequency Response 20 Hz to 20 kHz, +0/-1.4 dB
    THD+N 0.005%
    Dynamic Range > 100 dB
    Ethernet Neutrik etherCON RJ45
    Headphone Outputs 3-conductor, 1/4" jack
    USB USB Type-A, used only for application firmware updates
    AC 3-blade, IEC 320 C14-compatible (mates with IEC 320 C13)
    DC Input 4-pin XLR male
    Unbalanced Audio 2 x Unbalanced stereo 3.5 mm for use with inputs > 6 kOhms
    Max Stereo Output Level: 7.8 dBu, 100 kOhm load
    Headphone Output: 3.5 mm stereo
    Power & Other Parameters
    AC Voltage 100 to 240 V, +10/-15%, 50/60 Hz, 15 W max
    DC Voltage 10 to 18 VDC, 1.1 A max at 10 V
    <100 uA current draw when AC is present
    Dimensions (W x H x D) 19.0 x 1.7 x 8.4" / 48.3 x 4.4 x 21.3 cm
    Rack Unit Space 1 RU
    Weight 3.5 lb / 1.6 kg
    Packaging Info
    Package Weight 6.3 lb
    Box Dimensions (LxWxH) 21.0 x 14.1 x 5.5"

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