One commonly used solution to cable-length limitations is something called HDMI over Cat 6. ­Steven D'Addone, co-owner of Intra Home Systems in New Jersey—an installer of high-end audiovisual systems—swears by the technology. "We only run Cat 6," he tells Pop Mech. But HDTVs have introduced a whole new way of arranging home theater gear. Flat screens are increasingly thin and lightweight, and their picture-frame profiles make them perfect for hanging on walls. Similarly, HD home theater digital projectors are now affordable enough for non-gazillionaires to set up a basement cinema. The issue occurs over the balun into my onkyo 515 avr or if directly connected via hdmi from one of the matrix hdmi output into my other onkyo amp. This manifests itself as the audio disappearing completely and the HDMI icon on the both amps flashing indicating handshaking is going on.

So an update/cry for help....since the last post renovations have finished and I've had the matrix feeding my EF950V TV in the living room via a Onkyo TX-NR636 with no issues. I've been sent a replacement unit and have even tried a more expensive hdbt unit from the same place, but the issue persists.An HDMI over Fiber extender uses an optical fiber cable to transmit the data to reach a much farther distance. You could use an HDMI over Fiber extender to extend the connection up 1,000 to 3,300 ft (300 to 1000 meters) for 4K @ 60 Hz. Like many audio, video, and data cables, HDMI cords can suffer from signal degradation at longer lengths—50 feet is generally considered the maximum reliable length. And it's rare to see an HDMI cable longer than 25 feet in a store. Even online, cables more than 50 feet long can be hard to find. If your TV, set-top box, and other AV equipment are all on the same piece of furniture, this isn't much of a concern. With a collocated setup, you'll probably never need more than 6 feet of cable at a time.

Anyway, at the time of running the Feizu cable, I also ran a cat 5e, just in case. It's good quality, solid. I've stupidly built a cabinet around the cable entry to the wall so replacing it will be tough, so I'd prefer to try a HDbaseT extender. I've looked at the SY-HDBT-EC but the data sheet is confusing. Does HDMI 1.4 do 4k60 4:4:4? An HDMI over fiber extender is similar to the HDMI over Ethernet extender but instead uses a fiber optic cable. HDMI over fiber is best for in-wall installations or for extending the connection a lot farther than the other solutions can go. For distances up to 300 feet, similarly priced adapters are available that make use of coaxial cable. One catch: HDMI over coaxial solutions usually require a minimum of two coax cables, and often as many as four. This means existing household coax installations, which generally make use of only a single cable running to each connected room, won't be of much use.

For example, if you wanted to extend from the top floor of a building or to another house, you could run the cable through the walls or underground. Then connect the extender devices on each end of the cable and a standard HDMI cable from the device to your display. If you are using this for outdoor use, be sure to use an optical fiber cable rated for using outdoors. If you have to run the cable over long distances HDMI cable is not the most reliable. Ethernet cable, Cat 6 specifically, on the other hand, is way superior when it comes to reliably transmitting signal over hundreds of feet. It’s also less expensive. You spend all that money of a glitzy 4K Ultra HD TV set and had it neatly mounted on the wall. But you still had to run the cables from TV to DVR, Blu-ray Player, what have you. All of that equipment is likely staked up in the TV stand/console nearby. It’s got to be a better way. Wireless HD systems can be useful, but they have limitations. In most products, broadcast ranges top out at around 50 feet. Unlike HDMI over Cat 6, wireless HDMI solutions tend to degrade image quality—not fatally, but enough for a discerning eye to notice. Signals are also prone to unpredictable interruptions, just like you sometimes experience with WiFi. Just by way of update I'm still struggling with the audio issue. After troubleshooting with Richard at Fourkay (who has been brilliant btw), we worked out that it was stuff encoded in DTS audio that cuts out. DD and PCM are fine.