RDL EZ-HK3 – Stereo Audio and Composite Video Hum Killer is backordered and will ship as soon as it is back in stock.
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What is the RDL EZ-HK3?
The RDL EZ-HK3 is a transformer isolation module that eliminates ground-loop hum in both stereo audio and composite video. It installs between an unbalanced A/V source and a grounded amplifier and display.
How does it work?

Stereo audio and 75 Ω composite video connect on gold-plated RCA jacks. Each input shield is isolated from the case and output ground, and a rear-panel ground-lift switch lifts both the audio and video output grounds. Audio runs at -10 dBV nominal and 10 kΩ with 20 Hz to 20 kHz (±1 dB) response, and video bandwidth is 40 Hz to more than 5 MHz, all at unity gain. The 1/6 rack width case mounts in the EZ-CC6 component chassis or EZ-RA6 rack adapter.
What are the key features?
- Audio and video isolation — One module breaks ground loops on stereo audio and composite video together.
- Gold-plated RCA jacks — Input and output connectors match consumer A/V sources.
- Ground-lift switch — One switch lifts both audio and video output grounds.
- Passive unity gain — No power is needed and signal levels are unchanged.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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