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Title: Buyer Beware
Review: Thankfully, Amazon has a wonderful return policy. When I first used this sub it tended to rumble and thump but with some tweaking I was able to find a decent sound. I used this exclusively for music and it did a fine job adding richness and depth to the sound of my two speakers. Unfortunately after about two weeks in the middle of a song it started to whistle and hum and then it just droned like a broken fog horn. I shut the whole system down, let it rest, turned the system back on and, nothing. Again, returning it could not have been simpler; the UPS driver affixed a pre-printed label to the box and picked it up from my house. In two days I received an email from Amazon that my return had been processed. I know that Polk makes wonderful speakers as I have a pair, but this sub is not in that category.
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