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Compact black metal box with SDI and quarter-inch audio jacks

Blackmagic Design Pty. Ltd.

Blackmagic Design Pty. Ltd. CONVMCSAUD4K SDI to Audio 4K media converter

SKU CH-2G0B-VK441 MPN CONVMCSAUD4K

De-embeds 4 analog or 8 digital audio channels from SD, HD, 3G or 6G-SDI video up to 4K, with redundant input failover and USB configuration

  • Power draw5.52 W
  • Conversion typeSDI to Audio
  • Product formatSDI Format Support: 525/29.97 NTSC, 525/23.98 NTSC, 625/25 P
  • Interface typeSMPTE 292M, SMPTE 259M, SMPTE 296M, SMPTE 372M, SMPTE 424M-B
  • Video sampling4:2:2, 4:4:4
  • Audio formatsTelevision standard sample rate of 48 kHz and 24 bit.
  • De-embed 4 analog or 8 digital audio channels from any SDI video connection
  • Redundant SDI input automatically switches over if the main signal is lost
  • Auto-detects SD, HD, 3G and 6G-SDI rates including 4K and UHD formats
  • 48 kHz 24-bit audio sampling with professional balanced 1/4 inch jack connections
  • Low 5.52 W power draw with universal 12 V supply and international socket adapters

SDI to Audio 4K converter

The Blackmagic Design Mini Converter SDI to Audio 4K de-embeds four channels of balanced analog audio or eight channels of AES/EBU digital audio from any SD, HD, 3G or 6G-SDI signal. It supports video formats up to 4096 x 2160p30 and 3840 x 2160p30 with automatic input detection and reclocking. Configuration is handled by onboard mini switches or via USB using the included Mac and Windows utility. A universal 12 V power supply with international adapters is included.

Replaces embedded-audio extraction workflows

This unit replaces the need for a separate de-embedder and distribution amplifier when you only need the audio portion of an SDI stream. The jump is worth it when moving from SD or HD infrastructure to 3G or 6G-SDI and you require simultaneous analog and digital outputs with redundant input failover. It is not suited for installations that need video routing, format conversion, or more than eight audio channels from a single link.

Limited to single-link SDI bandwidth

The converter operates within the constraints of single-link 6G-SDI, so 4K sources above 30 fps or 12G-SDI signals are not supported. Audio is fixed at 48 kHz 24-bit sampling with no sample-rate conversion, and the USB port serves only for firmware updates and configuration, not for audio streaming. The 12–31 V DC input range allows battery or rack power, but the device provides no genlock reference or timecode pass-through.

How it compares

Measured against everything we stock in Video & Signal Converters, at today’s prices. Recalculated every night.

Price $230.99
Pricier than about 86% of the 286 comparable items (median $27.99).

Specifications

Product
Brand nameBlackmagic Design
Model nameCONVMCSAUD4K
Conversion typeSDI to Audio
Product colorSDI Color Precision: 4:2:2, 4:4:4
SDI Color Space: YUV, RGB
Audio & video
Audio formatsTelevision standard sample rate of 48 kHz and 24 bit.
Digital audio8 channels of professional balanced digital with standard 1/4 in jack connections.
Audio connection4 channels of professional balanced analog audio with standard 1/4 in jack connections.
Ports & slots
Interface typeSMPTE 292M, SMPTE 259M, SMPTE 296M, SMPTE 372M, SMPTE 424M-B, SMPTE 425M, ITU-R BT.656, ITU-R BT.601, SMPTE ST-2036
USB connectionUpdates and Configuration: USB
Additional connectorMulti Rate Support: Auto detection of 4K, UHD, 2K, HD or SD-SDI inputs.
Reclocking: Yes
Power
Power draw5.52 W
Power supply+12 V universal power supply included with international socket adapters for all countries. Cable tie point.
Operational Voltage Range: 12 V - 31 V DC
Size & build
Product dimensions4.52 in × 3.63 in × 0.9 in
Product weight7.61 oz
Shipping weight0.45 kg
Package size152 × 127 × 51 mm
In the box
Included itemsMini Converter SDI to Audio 4K
12 V universal power supply with international socket adapters
More details
Product formatSDI Format Support: 525/29.97 NTSC, 525/23.98 NTSC, 625/25 PAL, 720p50, 720p59.94, 720p60, 1080i50, 1080i59.94, 1080i60, 1080p23.98, 1080PsF23.98, 1080p24, 1080PsF24, 1080p25, 1080PsF25, 1080p29.97, 1080PsF29.97, 1080p30 and 1080PsF30, 1080p50, 1080p59.94, 1080p60, 2048 × 1080p23.98, 2048 × 1080p24, 2048 × 1080p25, 2048 × 1080PsF23.98, 2048 × 1080PsF24,2048 × 1080PsF25, 3840 × 2160p23.98, 3840 × 2160p24, 3840 × 2160p25, 3840 × 2160p29.97, 3840 × 2160p30, 4096 × 2160p23.98, 4096 × 2160p24, 4096 × 2160p25, 4096 × 2160p29.97, 4096 × 2160p30.
Video sampling4:2:2, 4:4:4

Questions about this item

What are the dimensions of the CONVMCSAUD4K for rack-mount planning?

The unit measures 4.52 inches wide, 3.63 inches deep and 0.9 inches high, so it fits in a compact desktop space or a 1U rack shelf with room for cable routing.

How is the converter configured, and what step do users often miss?

Settings are changed via the mini switches on the enclosure or through the USB port using the included updater application on Mac OS X 10.9 or later and Windows 7 or 8; the step often missed is running the updater after switch changes to lock the new configuration.

What ongoing maintenance does the Mini Converter SDI to Audio 4K require?

The only maintenance is periodic firmware updates via the USB port using the supplied updater application; the internal power supply operates from 12 V to 31 V DC and has no user-serviceable parts.

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