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The surge protector was easy to install and the price ca not be beat. This product sells elswhere gor over 50 dollars
The other two were grossly rusted as if it was previously wet, or just very old.Emailed seller who indicated they would "look around" to see if they had a replacement. Item was listed as brand new in original packaging.When received, 2 grommets that are located in each corner of the packaging to keep it secure were missing. They didn't have a replacement.I asked to have a pre-paid label to return the merchadise.Seller provided an immediate credit and said to keep the item.Hmmmm.
It did a little in reducing the buzz, but by no means did it eliminate it. This, however, was not the case. In my case, it did not fit the bill I was getting some feedback over my subwoofer, so after trial and error with the manufacturer, we determined it was a power problem. This was supposed to 'clean' the power to reduce interference. I ended up plugging the sub into my APC power strip and it works fine.If someone just needs surge protection or a minor power interference, I'm sure this would work well for them.
I bought the MP SW 200 WITH CLEAN POWER STAGE to eliminate this hum without paying up for a larger surge protector which i didn't need. Boooo.On the bright side, the surge protector appears to be in functioning condition, so hopefully it will protect my sub. My new polk audio subwoofer has a very low hum when plugged in and not in use. However, the hum still exists.
Certainly I would use this device for my own home theater subwoofer. We also use the more elaborate Monster HTS 1000 MKIII to protect the $100,000 crown milling machine. This power protection device is used in a dental office to guard a $25,000 crown design machine and computer. The design center moves from operatory to operatory as needed and with an SW 200 installed in each room it's reassuring to know that the power supply won't present any problems to the system. Monster makes great power protection devices; I'd buy them any time.
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