RapcoHorizon ISOBLOX Inline XLR Signal Isolation Box
RapcoHorizon ISOBLOX Inline XLR Signal Isolation Box
SoundPro Item: 57162 | Part Number: ISOBLOX
Usually ships in 5-7 business days
- Transformer-Coupled 1-To-1 Isolation Eliminates Ground Loops On Balanced Lines
- Matched Source And Load Impedance Maintains Signal Transparency Without Level Loss
- Passive Design Requires No Power And Adds Zero Latency To The Signal Chain
- XLR Female Input And XLR Male Output Drop Into Standard Cable Paths Without Adapters
- Compact Form Factor Fits In Tight Rack Wiring, Stage Boxes, And Cable Bundles
The RapcoHorizon ISOBLOX is a passive inline isolation device built for audio engineers who need reliable ground loop elimination on balanced XLR signal paths. With a 1-to-1 transformer and matched 600 ohm source and load impedance, it inserts transparently into any balanced line without introducing level shift or impedance mismatch — a critical requirement when interfacing consoles, outboard gear, broadcast feeds, or installed audio zones that share different ground references.
Live sound engineers use the ISOBLOX between stage boxes and FOH racks to kill hum introduced by long cable runs or shared power distribution. Install integrators rely on it when tying AV systems into building infrastructure where ground potential differences are unavoidable. The XLR female input and XLR male output allow it to drop into any standard mic or line cable path without adapters, keeping the signal chain clean and the troubleshooting simple.
Unlike software-side fixes or active DI workarounds, this hardware solution requires no power and adds no latency, making it a reliable first-response tool for persistent noise issues in touring, broadcast, and fixed-install environments where uptime is non-negotiable.
- Connectors
- (1) XLRF XLR female panel mount
- (1) CXF transformer
- (1) XLRM XLR male panel mount
- Dimensions3.5x1.25x1"
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