I use http://powergy.com/products.aspx
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A lot of power companies offer full house surge protection for your house for a monthly fee as well. It does nothing for the sound and picture of your system and I still use a seperate power conditioner for my system. On my larger room I use seperate balanced transformers from Equitech that cover all of the outlets on that are on the fuse they are connected to . They work great for the sound and picture. The above thread mentions products that work great in conjuction with some of the others as well.
you will not notice any affect to your sound with a whole house surge protection system. the current does not run through the device. they plug into the panel and are sacrifical in operation. I use one and then run the power through a pair of isoclean isolation transformers to smooth out the current on the way to my system.
I have an Environmental Potentials EP-2050 whole house surge protector/filter installed in my service panel. It is an industrial electrical surge and noise filtration system adapted for the residential marketplace.
It has not changed the sound of my system in any detrimental fashion.
A few years ago, I rewired my entire house. The new meter from the power company's meter has a built-in surge protector. Right behind the meter is Square D's commercial grade power center with large copper bars that feed 2 commercial grade switches, one 200-amp for the house and another100-amp dedicated to the AV system. Each feeds into its own Square D QO Load Center which has its own built-in lightning grade surge protector. i.e., one panel for the house and the other for the AV system. An 85-foot long armored, cryo'd and cooked 00-awg copper cable connects the the 100-amp switch to the AV QO Load Center, which has 5 circuits dedicated to the AV system: 1 for each monoblock, 1 for the digital components, 1 for the analog components and 1 for the projector. Each of those terminates in an audiophile grade receptical. PAD Anniversary PCs then connect to Transparent PowerIsolator MMs which have non-current limiting surge protection that reacts in pico-seconds instead of the usual nanoseconds.
This change actually improved the sound dramatically (a truly dead quiet background) with no sonic sacrifices whatsoever. And I sleep better at night and feel far more comfortable when I'm away from the house.
Hope this helps.
Unplugging when you leave the house for an extended period or when you know that thunderstorms are likely is the best and wisest protection.
But there are other types of surges in the mains that are random and unpredictable, such as when a transformer blows or when a generator is taken off line or when power is simply interrupted and then comes back on. These surges, especially an accumulation of them over time, will damage your system. Extremely fast, high quality surge protectors are a defense against damage caused by these surges.
I agree Cipherjuris.A word of caution,if your equipment is damaged by any surge related incident,be prepared for a fight from your insurance carrier and the mfg. of your surge protector.Also be prepared to take a big dollar loss,when they finally settle. It will be well below what your equipment is worth.
I agree with you. Still, I believe my equipment will will last longer on spec with the surge protectors than without them. I do unplug when lightning is anywhere nearby, so except for the odd "bolt out of the blue" as it were, my equipment is not at very great risk to lightning. I'm more concerned about the normal surges on the mains, which are death to the equipment by thousands of cuts.