Have tested both Celerity and Monoprice HDMI cable
I am feeding a number of UHD sources through a Denon AVR-X7200WA receiver (OPPO UDP-203, Roku Premiere+, Amazon Fire TV, Dune HD Solo 4K, Chromecast Ultra and Zappiti Mini 4K HDR) into a Sony VPL-VW675ES projector. All of the sources are connected to the Denon with 18.2 Gbps rated certified HDMI cables.
I initially bought the 35 foot Celerity Fiber Optic cable. With the first Celerity cable I installed, the image would keep dropping in and out, even at a lower bandwidth signal source setting (e.g. 4:2:2, 10-bit, 24 Hz).
My distributor replaced the Celerity cable. The 2nd cable worked better and the image remained stable as long as the image source parameters remained the same. Switching the source from e.g. UHD 4:4:4 12-bit 60 Hz to 1080p worked fine, but the handshake would take up to 30 seconds. Switching back to UHD would sometimes result in a 2nd (ghost) image. Unplugging the cable from the Denon AV receiver and plugging it back in would resolve the issue. The handshake would take so long that when I started play a UHD Blu-Ray movie, I could immediately hear sound but it would take 20 to 30 seconds to see picture. When stopping playback, the projector would sometimes remain stuck in HDR mode instead of switching back to Gamma.
I have tried switching the Celerity cable transmitter plug between the HDMI output of the AV receiver and the HDMI output of the OPPO player but the instabilities remained the same. I took the Celerity cable to a friend's house and connected his OPPO UDP-203 directly to his LG OLED 4K TV - handshake would take "forever" as well.
As a last resort, Celerity sent me a new transmitter/receiver pair but I was back to square one - the image would continuously drop in and out just like the original setup.
As an experiment I moved the UDP-203 closer to the projector and connected it with a 3 meter 18.2 Gbps rated/certified cable.
Amazing result - switching resolutions on the OPPO resulted in near-immediate handshake. Rock-solid image, no drop-outs. When playing UHD Blu-Ray discs, I could see the studio logo trailers (e.g. Universal) for the first time - before doing this experiment, the trailers remained "invisible" due to the long handshake time.
I was able to temporarily install another 18.2 Gbps cable (stretched and hanging mid-air ;-) between the output of the AV receiver and the projector.
The handshake time slightly increased (3 to 5 seconds - expected through the AV receiver) but otherwise rock solid.
Checked all my other sources (played with different resolutions and bandwidths) - no problems.
As some guys here on the forum recommended the active Monoprice cable, I decide to give the 30 foot Monoprice "Cabernet Ultra CL2 Active High Speed HDMI Cable" a try (Monoprice is out of stock on the 35 ft cable) and IT WORKED.
Tried feeding it directly from the OPPO and then from Denon AVR-X7200WA - same result as using the 3 meter cable in my previous experiment.
I have been using the active Monoprice cable for a week now - so far so good.
I will order the 35 foot cable when it is back in stock.
For those who have bought active cables like this one from Monoprice before, how well does it perform over time? Any known issues/failures of the active circuitry?
Last edited by Melgon; 04-22-2017 at 09:43 PM.
Reason: Spelling errors