Can I Use Coax Instead of HDMI for a Matrix Switcher?
Yes, and for professional broadcast and production environments, coax-based SDI is often the better choice, not just an alternative.
Key takeaways
- SDI (coax/BNC) runs much further than HDMI before needing a repeater or extender — up to ~100-150m vs a few metres for HDMI.
- SDI is the broadcast-industry standard for professional routing, embedded audio and metadata.
- HDMI is more common on consumer and presentation devices, so many portable switchers support both.
Why broadcast systems prefer coax/SDI
HDMI was designed for short consumer runs; SDI over 75-ohm BNC coax was designed for professional facilities and reliably carries a clean signal much further before needing extension. That is why our core routing matrices — the MSS0811 and MSS1611-S — are SDI-based.
Where HDMI still matters
Laptops, consumer playback devices and many cameras output HDMI natively. Portable switchers like the Shark S8X Plus accept both SDI and HDMI inputs side by side, which is the practical answer for mixed-source events rather than forcing everything through one connector type.
Which to choose
For a dedicated broadcast or production routing matrix, coax/SDI is the professional standard. For a portable, mixed-source production switcher, look for a model with both SDI and HDMI inputs so you are not limited by what each source happens to output.
Not sure which model fits your channel count and budget? Our team can size a system for you.