02/22/2026
Did you know?
Most people think “WMAS” just means “lots of channels in little spectrum” – but the official story is much more specific.
According to ETSI TR 103 450, the canonical Wideband Multichannel Audio System is defined around a single shared wideband RF channel (typically one 6 or 8 MHz RF channel) that carries all audio links for a production, enabling far more effective use of the available spectrum. All microphones, IEMs and returns are centrally coordinated inside this one contiguous block, using wideband digital modulation and time/frequency resource management rather than stacks of separate narrowband carriers.
That’s exactly the idea behind modern wideband ecosystems like Spectera:
- One base station.
- One wideband RF channel (6/8 MHz).
- Dozens of audio channels in both directions (MIC, IEM) managed as a single RF resource instead of individual frequencies.
So WMAS isn’t just “more efficient RF.” It’s an architectural shift: away from link‑by‑link planning, towards treating an RF channel as a pool of capacity that the system dynamically slices up for your production, maximising the effective use of every MHz.
LiveSound Broadcast AudioEngineering SpectrumEfficiency
