Simple, Inexpensive Devices Block Noise from Entering Active Circuit and Protect Against Dust: AudioQuest HDMI Noise-Stopper Caps Fit Over the Unused HDMI Inputs and Outputs of Your Gear AudioQuest 's RCA noise-stopper caps have for decades been one of the cheapest, most effective audiophile accessories. The company has wisely expanded that concept to HDMI noise-stopper caps for unused HDMI inputs and outputs. By fitting these handy devices right over the unused ins/outs, they prevent RFI and EMI noise from entering the active circuit - and protect against dust and corrosion. You'll hear (and see) the difference. Simple and easy! If you have audio or video gear with open HDMI inputs, consider these caps as essential as the power cable. (Sold in sets of four.)
- Block RFI & EMI Noise: Prevent unwanted radio-frequency and electromagnetic interference from entering your HDMI-enabled AV components through open HDMI ports.
- Protect Unused HDMI Ports: Shields unused HDMI inputs and outputs from dust, corrosion, and physical damage, extending the life of your devices.
- Improve AV System Integrity: Preserve clean signal paths by reducing noise contamination and maintaining the performance of your audio/video setup.
- Easy to Use, Snug Fit: Simply press over any unused HDMI input or output for an instant fit—no tools or installation required.
- Ideal for Home Theater & HiFi Gear: Compatible with TVs, AV receivers, soundbars, gaming consoles, and any other HDMI-equipped gear.
- Block RFI & EMI Noise: Prevent unwanted radio-frequency and electromagnetic interference from entering your HDMI-enabled AV components through open HDMI ports.
- Protect Unused HDMI Ports: Shields unused HDMI inputs and outputs from dust, corrosion, and physical damage, extending the life of your devices.
- Improve AV System Integrity: Preserve clean signal paths by reducing noise contamination and maintaining the performance of your audio/video setup.
- Easy to Use, Snug Fit: Simply press over any unused HDMI input or output for an instant fit—no tools or installation required.
- Ideal for Home Theater & HiFi Gear: Compatible with TVs, AV receivers, soundbars, gaming consoles, and any other HDMI-equipped gear.
