Sound Devices MD-4 4-Input 4-Output Analog to Dante Audio Interface

Sound Devices MD-4 4-Input 4-Output Analog to Dante Audio Interface Overview: The MD-4 4x4 Analog-to-Dante Interface with Headphone Monitor is a simple, high-performance interface for connecting analog audio to Dante audio networks Four high-gain microphone or line-level inputs are available for connection to a Dante audio network.

Additionally, four Dante signals can be sent to its four balanced analog outputs Inputs or outputs can be routed to headphones for signal monitoring and metering.

The MD-4 is an ideal companion in a rack with the Sound Devices 970 audio recorder Features: Four front-panel, balanced, analog, mic or line level inputs with 48 V phantom power and high-pass filter 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, with front and rear panel headphone output Built-in AC power supply (100-240 V, 50/60 Hz on IEC C14) or 11-18 VDC powering (4-pin XLR) Durable 1-U rackmount chassis Specifications: Network Audio Technology Type: Dante audio-over-Ethernet Bit Depth: up to 24 Sampling Rate: 48 kHz Number of Transmitter (Output) Channels: 4 Number of Receiver (Input) Channels: 4 Dante Audio Flows: 4; 2 transmitter, 2 receiver Network Interface Type: twisted-pair Ethernet Data Rate: 100 Mbs (10 Mbs not supported; 1000 Mbs “GigE” Ethernet not supported unless falls back to 100 Mbs) Mic/Line Inputs: 4 Compatibility: dynamic or phantom-powered mics; line-level sources Type: 3-pin female XLR, analog, electronically balanced, capacitor coupled Impedance: 4 k ohms, nominal Gain: 0 dB (line), 10 dB, 19-70 dB in 3 dB steps (total 20 choices) Maximum Level: +18, +20, or +24 dBu, configurable, 0 dB gain selected, results 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 Distortion (THD+N): more than 0.001% (–101 dB) at –1 dBFS, 40 dB gain, 22 kHz bandwidth Frequency Response: +0.0/–0.5 dB, 22 Hz to 22 kHz, HPF off High-Pass Filter (HPF): –6 dB at 75 Hz, 18 dB per octave, on/off selectable per channel Phantom Power: P48 per IEC 61938:2013 standard, +46 volts DC nominal, on/off selectable per channel Meters: 4, one 8-segment LED per input Status LEDs: 3, P48, HPF, input channel selected Line Outputs: 4 Type: analog, electronically balanced, capacitor coupled, intended to drive balanced or unbalanced loads of 2k ohms or greater, 3-pin XLR 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 Distortion (THD+N): 0.0012% (–99 dB), measured at –1 dBFS, 22 kHz bandwidth Frequency Response: ±0.1 dB, 20 Hz to 20 kHz Audio Monitor: Source: mic/line inputs or line outputs, selectable as monaural or stereo Meters: 2, 8-segment LED Headphone/Monitor Output: Type: stereo (dual-channel), when jack on front panel is used jack on back panel automatically disconnects Compatibility: intended for connection to stereo headphones with nominal impedance of 100 ohms or greater Maximum Output Voltage: 4.9 volts RMS, 1 kHz, 150 ohm load Frequency Response: +0/–1.4 dB, 20 Hz to 20 kHz Distortion (THD+N): 0.005% Dynamic Range: >100 dB Connectors: Ethernet: Neutrik etherCON RJ45 Headphone Outputs: 3-conductor ¼-inch jack Factory: USB type A receptacle used only for application firmware updates AC Mains: 3-blade, IEC 320 C14-compatible (mates with IEC 320 C13) DC Input: 4-pin male XLR Power Source: AC Mains: 100 to 240 volts, +10/–15%, 50/60 Hz, 15 watt maximum DC Input: 10-18 volts DC, 0.x A maximum @ 12 volts; 1.1 A maximum @ 10 volts; current draw when AC present is less than 100 uA Chassis Dimensions: 19.0 inches wide (48.3 cm) 1.72 inches high (4.4 cm) 8.4 inches deep (21.3 cm) 1U in a standard 19-inch rack Stereo Out 2ch unbalanced stereo 3.5 mm for use with > 6k ohm inputs Max Stereo Out Level: '+7.8dBu 100Kohm load Headphones Out: 3.5 mm Stereo Weight: 3.5 pounds (1.6 kg) In the Box: 1 x MD-4 1 x Power cord 1 x User guide.