Sonifex RB-SD1 Silence Detect Unit
Keep your broadcast or audio feed running smoothly with the Sonifex RB-SD1 Silence Detect Unit. This handy rackmount device steps in when your main signal goes quiet, automatically switching to a backup source so your audience never sits in silence. It’s a simple way to keep things professional and reliable, whether you’re in a studio, on air, or managing an installation.
Sonifex RB-SD1 Silence Detect Unit Review
The Sonifex RB-SD1 packs professional-grade performance into a slim 1U rack unit. It monitors both your main and backup audio feeds, automatically stepping in when your main source drops below a set level. With adjustable silence detection times, user-friendly controls, and both automatic and manual modes, it gives you total control over how your system responds. Front panel LEDs show you what’s happening at a glance, while built-in relay outputs and remote control options make it flexible enough for broadcast studios, live events, or transmitter sites. Even if the power fails, the passive design ensures your main signal still passes through.
Sonifex RB-SD1 Silence Detect Unit Features
- Keeps your broadcast alive by switching to a backup source when silence is detected
- Lets you choose how long silence lasts before it switches over
- Clear front panel lights show signal and alarm status at all times
- Works in both automatic and manual modes for full flexibility
- Remote control options make it easy to manage from a distance
- Slim rackmount design saves space while delivering peace of mind
Sonifex RB-SD1 Silence Detect Unit Specs
- Maximum input and output level up to +28dBu
- Adjustable silence threshold from -15dBu to -60dBu in 3dB steps
- Silence detection time adjustable from 2 to 30 seconds, plus a 125-second option
- Frequency response from 20Hz to 20kHz ±0.1dB
- 2 balanced stereo audio inputs and 1 balanced stereo output with XLR connectors
- Dimensions 19in W x 4.3in D x 1.7in H (1U rackmount)
- Weight 3.1 lbs
- Power requirement 110–120V or 220–240V AC, 9W max
