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Hurricane Gary II

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Great article. That looks like an awesome addition to any home theater. There are many products on the market that are very high tech, and they only continue to advance as time goes on. Custom home theaters have become very popular in our time. These theaters typically have surround sound, universal remotes, 3d television capabilities and more. Thanks for sharing.
Matt@ Home Theater Company

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A surge protector contains a surge absorbing device that is designed to absorb a specified amount of energy (joules). This means that it can absorb a specified overvoltage for a specified time. If the surge exceeds this level, the surge device will fail. Many/most surge protectors allow the overvoltage to get to the connected equipment when the surge device inside fails.

There are a few surge protectors on the market that will shut off power to connected equipment if the surge exceeds the surge device rating. For example, the Power Sentry surge protectors that employ Power Blocker automatic shutdown technology. These are better than the typical surge protectors.

APC makes a great little device that only cost $60 called the LE1200 Line-R Automatic Voltage Regulator. It is essentially a tap change transformer that regulates the output voltage to 120 VAC when the input voltage varies over a pretty wide range, protecting from overvoltage and brown outs. If the input voltage is too high or too low, it shuts off and disconnects the connected equipment. It also includes surge protection, and there is a smaller version. The Line-R will protect connected equipment from just about anything at a pretty low cost. APC builds this same technology in to their better UPSs.

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One more comment.

There are relatively simple electrical failures that can apply high voltage to your equipment for a long time. For example, if the neutral connection to your house fails open, the voltage to everything on one side of your electrical panel can swing up to 2x the normal voltage (up to 220 VAC) until you fix the problem. The surge absorbing device in a surge protector will fail if this happens.

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