RME Audio DMC 842

When developing the DMC-842, RME worked closely with the microphone manufacturers to secure maximum compatibility and best functionality. As a result the DMC-842 is the most flexible and most compatible AES42 interface available - a true milestone for the broad acceptance of the new digital microphone technology.

The DMC-842 is fully remote controllable, via MIDI, AES and (optional) MADI. The optional I64 MADI Card provides serial pass-through capability from one DMC-842 to the next (up to 8). All up to 64 audio signals are then available at the last device on one single line. Such a way of cascading is also possible with the Micstasy and the ADI-8 QS. The signals passed through the DMC-842 are available at the analog outputs, making an expensive splitter box on stage obsolete.

Specifications

🎛️ Inputs

• 8 x XLR (AES42, AES3 compatible)
• 1 x D-sub for AES sync

🔊 Outputs

Digital Outputs:

• 4 x AES/EBU (via 25-pin D-sub)
• 2 x ADAT optical
• Optional MADI

Analog Outputs:

• 8 x XLR, balanced
• Max output level: up to +24 dBu

🎧 Audio Performance (DA Conversion)

• Signal-to-Noise Ratio (SNR): 116 dB RMS unweighted, 119 dBA
• THD: < -104 dB (< 0.00063%)
• THD+N: < -100 dB (< 0.001%)
• Crosstalk: < 110 dB
• Output Levels @ 0 dBFS: +24 / +19 / +13 dBu

Frequency Response (DA):

• 5 Hz – 22 kHz @ 48 kHz
• < 5 Hz – 34 kHz @ 96 kHz
• < 5 Hz – 50 kHz @ 192 kHz

⏱️ Clock & Sync

• Sync Sources: Internal, AES, Word Clock, MADI (optional)
• Supported Sample Rates:
• 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
• Variable (external clocks)
• Sample Rate Ranges:
• MADI: 32 – 192 kHz
• Word Clock: 27 – 200 kHz
• AES: 28 – 200 kHz
• Jitter:
• Typical: < 1 ns
• Suppression: >30 dB @ 2.4 kHz
• Tolerance: Up to 100 ns (error-free operation)

⚙️ Hardware

• Power Supply: Internal switch-mode, 100–240V AC, 60 W
• Dimensions: 483 x 88 x 200 mm (W x H x D)
• Warranty: 2 years