How to Build the Ultimate 3D Home Theater PC
Networking Your Home Theater
There's more than one way to skin a CAT
In a perfect world, we’d all have a home run in a structured wiring cabinet with CAT6 cable running to every room in the house. Given the bandwidth demands associated with streaming Blu-ray 3D video with an HD-audio soundtrack from a media server, gigabit Ethernet is definitely the best way to go. Fortunately, it’s not the only way to go; goodness knows none of us lives in a perfect world, so we’ll discuss both best practices and practical alternatives.
Ideally, you’ll have an 802.11n router with a gigabit switch, and a DSL or cable modem in a home run—a central location where all your cables (Ethernet, coax, and telephone) terminate. That’s difficult to pull off in a home that’s already built, but you really should consider at least stringing Ethernet cable from your router to your home-theater PC. We recommend CAT5e cable: It’s perfectly adequate for a gigabit Ethernet network, it’s a whole lot cheaper than CAT6, and your home will likely never need a 10Gb Ethernet network, anyway.
We typically prefer to build our own rigs, but HP's MediaSmart Server EX495 is the best plug-and-play solution on the market.
Wired Alternatives
You might still be able to operate a wired network even if you live in an apartment or condo, can’t access your attic or crawlspace, or a new cable run is otherwise out of the question.
Power-line network adapters send data over your home’s existing electrical grid: Plug one adapter in an AC outlet near your source (e.g., your router), plug a second adapter into an AC outlet near your HTPC, and data travels over the electrical wires. If you go this route, make sure you buy devices that comply with the HomePlug AV standard, since it delivers theoretical data rates of up to 189Mb/s. HomePlug AV is also the basis of the still-evolving IEEE P1901 standard. Most companies building Wi-Fi routers also offer HomePlug AV products, including Belkin, D-Link, Linksys, Netgear, and Trendnet.
Power-line networking doesn’t work in every situation. We’ve found that Z-Wave home-automation products, for instance, inject a lot of noise into the wiring, and this seriously degrades the ability of power-line networking products to achieve maximum data rates.
If power-line gear doesn’t deliver a good experience, take a look at using your home’s existing coaxial cable connections (the same cables you use with your roof-top antenna or your cable company’s set-top box). The Multimedia over Coax Coalition (MoCA) has developed a specification for a home’s coaxial cable as a networking alternative.
Since cable TV became commonplace in the late 1970s, most homes built since then include coax runs in the original construction. And unlike Ethernet cable, coax cable sheathing can withstand sun and weather and can be run outside the home (it’s not pretty, but it works). MoCA adapters operate in a similar fashion to power-line adapters and offer similar data rates (up to 175Mb/s). Unfortunately, to date, far fewer manufacturers have jumped into the MoCA market. The list includes Actiontec, Linksys, and Netgear. In Lab tests, Netgear’s MCAB1001 demonstrated solid performance results.
Wireless Alternatives
Installing a wireless network is, of course, the least labor-intensive solution. A high-quality Wi-Fi 802.11n router will deliver more than enough bandwidth for HD video—provided there isn’t too much distance or too many physical obstacles between the router and the client. Just don’t expect to be able to stream Blu-ray 3D over a Wi-Fi network—those bit streams average about 40Mb/s. While the IEEE 802.11n standard specifies a theoretical maximum data-transfer rate of 300Mb/s, we’ve never seen an 802.11n router deliver more than 100Mb/s at a distance of 20 feet with a single wall between the router and the client.
If you want your Wi-Fi network to multitask by supporting web browsing and data clients as well as media-streaming clients, we suggest investing in a simultaneous dual-band 2.4/5GHz router. This will enable you to operate two discrete networks: one for data and one for media. Lastly, if you want to install a video projector across the room from your entertainment center, consider investing in a wireless HDMI system that operates on the 60GHz frequency band. The WiGig Alliance is developing a standard for this, but you can buy non-standard devices from Best Buy and Gefen that will do the job today.
Key Tips:
- Wired gigabit Ethernet is the best solution.
- CAT5e Ethernet cable is more than adequate.
- HomePlug and MoCA are good no-new-wires solutions.
- 60GHz streamers are best for wireless Blu-ray video/audio.