However, what qualities should I look in HDMI cables .. ?
Hi,
It depends on your environment, your equipment, and your needs. If you live, say, near the ocean or any other area with high humidity (e.g., Houston, Texas), gold plated contacts are a good idea because they're corrosion resistant. Otherwise, you don't need gold contacts. They won't improve the picture one iota.
AFAIK, the major selling points of exotic HDMI cables are things like molded strain relief (more resistant to damage from repeated plugging in & unplugging, which you're not likely to be doing), varying degrees of extra magnetic shielding (which you don't need if you're not going to have a significant device generating lots of magnetic interference near the cable), the geometry of the wires inside the cable (how they're laid out and/or twisted), types of metals used for the connectors (inside the cable) and different types of wire like long grain copper or oxygen-free copper. While I'm a big believer in the value of high-grade wiring when it comes to analog audio, it's much less important in digital video. That's because digital data is simply 1s and 0s, and the anomalies that affect analog audio don't affect digital as much. That said, I really like a company called AudioQuest. They're a step up from Monster Cable and typically cost about the same or less (and of course MC is known for being overpriced). I'm not enough of a wire-head to know how significant things like "critical twist geometry" or "conductive-coated conductors" or silver-plated connectors (inside the cable) are, but you can read about them on AudioQuest's site if you like:
http://www.audioquest.com/
(click on Video Cables, then HDMI, then Cable Theory)
Personally, I think the benefits of exotic HDMI cables might affect the audio portion of the signal more than the video portion.
All that said, in practical/typical household use I doubt if the average person could tell the difference, on their TV, between a $30 HDMI cable and a $300 one. Your sitch is a bit of a challenge because there aren't a whole lot of 10m cables to choose from. That's a pretty long run.
Re why the QED is so expensive, just read the description on that Amazon page (scroll down a bit). If having it come in a plush bag is important to you (I'm guessing not), and a "tactile feel" is likewise important (I assure you, AudioQuest & other nice cables are also "tactile"), and you want oxygen-free copper wire (which is actually good, although long-grain copper is better), go for it. Personally, I think it's obscenely overpriced. You're paying for an image and 'prestige' (such as it were) with that cable. IMHO that's the kind of cable that independently wealthy people buy to show off to their pseudo-knowledgeable A/V geek buddies.
Re v1.4 vs. 1.3, refer to queequeg99's postings below. He explains it better than I could. The v1.4 spec features some enhancements over 1.3, and you can read about them here:
http://www.hdmi.org/manufacturer/hdmi_1_4/index.aspx
and here:
http://www.hdmi.org/manufacturer/hdmi_1_4/hdmi_1_4_faq.aspx
I'm not going to recommend a specific cable to you because that's too subjective. Find a Website selling 10m HDMI cables and just get something based on the criteria mentioned above. I use sites like OneCall.com, Crutchfield.com, and Amazon mostly. I know Blue Jeans Cable is a popular site here, but I don't know a lot about their products. Reading about their HDMI cables on their site, it doesn't appear they have the level of esoteric research behind them that the AudioQuest cables do, but I don't know the significance of the latter vis-a-vis what you can see/hear from a BJC cable vs. an AudioQuest one. I guess you have to decide whether or not to believe AudioQuest's theories & applications.
Keep in mind that an HDMI cable of that length is gonna be pricey no matter what. By comparison, a basic 2m cable from AudioQuest runs about $35, so you should expect to pay a lot more for a 10m cable.
FWIW, this is probably a
better cable than the QED and it's $130 cheaper (and a bit longer):
http://www.onecall.com/product/Audio...ble/_/R-104339
It doesn't
say it's v1.4 compliant, but it has to be because it has ethernet capability. And it is high speed.
Good luck.