4-Input, 4-Output Analog-to-Dante Interface
DISCONTINUED PRODUCT
User Guide
The MD-4 4×4 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.
| Technical Details |
|---|
| 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) |
| Specifications and information contained in this User Guide are subject to change without notice. |