the hardware version of stability and reliability


The LX-MADI sound card is the essence of stability. It excels at performing 24/7 record/play operations with sub-millisecond round trip latency on its PCI Express interface: what more could you ask for? Its hardware-based architecture is our magic answer to potential disturbances while in service due to computational overload: you can keep your other applications running on the host system, stress-free, your LX-MADI will handle it. When facing demanding broadcast automation and on-air operations, video and post production workflows – LX-MADI is your ultimate guarantee of a stable, trouble-free, quality service.




Fast …

Forget latency: 0.5ms latency is the new black

… And Furious

A sturdy hardware structure to bear computational load while maintaining a stable service – a must in broadcast 

One card fits all OS 

Multiplatform feature to operate under Windows and Linux

Key features

Real time Multichannel audio digital interface

High stability for mission critical, 24/7 applications.

MADI: a professionals’ multi-Channel audio interface: 64 in / 64 outputs MADI (AES10) channels on Optical multimode interface


Increase Production and Automation density

64 I/O low latency channels driven by high precision clock synchronization

Secure content delivery

FPGA design and ultra-stable Linux and Windows drivers for 365/24 operation

True Real-time audio

Ultra-low latency (down to 1 ms round trip with 64/64 In/output streams)


Supported OS

Windows 10, 8 and 7 32/64bits, Windows server 2003/2008, 


Compatible Drivers: ASIO, WASAPI / low latency WDM DirectSound, ALSA

Latency: Round trip time down to 0.8 ms (excluding IP network)


Bus/Format: PCI Express(R) x1 (compatible x1, x4, x8, x16 slots)

Size: 111.15 mm x 167.65 mm x 20 mm

Power requirements (+3.3V/+12V): 0.4 A / 0.12 A

Operating: temp / humidity (non-condensing): 0°C / +50°C • 5% / 90%

Storage: temp / humidity (non-condensing): -5°C / +70°C • 0% / 95%

  • 2 Gigabit Ethernet RJ45 ports for RAVENNA I/O (dual port or Primary / Back up mode)
  • 1 optical connector for MADI I/O  (Factory option) (multimode, 1300nm)
  • 1 BNC for Word Clock In / Out
    IP Audio

    RAVENNA I/O channels: 2 banks of 64/64 I/O (Mono) channels at 44.1 kHz or 48 kHz (64/64 I/O on each Gigabit Ethernet interface)

    RAVENNA packet size: From 128 down to 1 (ultra-low latency profile) audio samples per RAVENNA packet

    AES67 compliance: Full compliance in all respects with AES 67

    Supported audio payload formats: PCM16 / PCM24 / PCM32 / AM824 (PCM24+AES3 channel status)

    PC Record/Play channels: 64/64 simultaneous Record/Play (Mono) channels to/from PC

    MADI (Multichannels Audio Digital Interface) inputs and outputs:

    • Optical I/O connector,  64/64 I/O  (Mono) at  48 kHz sampling frequency and  32/32 I/O (Mono) at  96 kHz
    • (Factory option)

      Word Clock input or output

      • BNC connector, Input or Output position selectable by software.
      • Input : TTL , impedance selectable by jumper (75 Ohms / HighZ).
      • Output : Max 5 Vpp, 75 Ohms output impedance

      Clock sources:

      • PTPv2 (IEEE1588-2008) from network or internal clock or Word Clock or MADI input
      • Local clock eligible as GrandMaster PTP
      • Local clock precision : better than 10 ppm

      Sampling frequencies:

      • From local clock: 44.1 kHz, 48 kHz and 96 kHz (MADI)
      • From network or Word Clock:  44.1 kHz, 48 kHz and 96 kHz (MADI)
      • From MADI: 44.1 kHz, 48 kHz, 96 kHz
      Control and Routing


      • HTTP (web pages from embedded server)
      • EMBER+

      Routing: Zero latency on-board routing matrix between RAVENNA, PC Rec/Play and optional MADI  channels


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