Summary: I have the PSW10 in conjunction with a Polk Monitor Series Surround and a Denon 2111 receiver... and Kimber Kable PBJ cables. I bought the PSW10 because I was living in a small apartment and didn't particularly want to blow my downstairs neighbors out of the building. For the price, these guys do fairly well with music. They are fairly tight from 40hz to about 80hz.
Summary: Its all true, read the reviews, don't look at the price, you get what you pay for. I can't even tell if there is an amplifier in this unit. Ordered original sub and after two weeks with no response, e-mailed to find my product, found out the item was no longer available (typical run around), was given an opportunity from the rep to "upgrade" with a discount. I figured why not, I already made all the typical mistakes why not let it run its course.
Summary: Don't expect audiophile qaulity. This is the type of subwoofer you want to set it and forget it. The volume control in the back should be set low to mid range. Anything higher than you will get distorted bass. Keep the volume and frequency range dials at mid range and try not to be too disappointed. It does make a slight difference than not having a sub woofer. It adds a little more rumble in the atmosphere. Just don't expect it to jump start your heart.
Summary: Bought this sub and was quite disapointed. The base hits pretty good a low volume. But once turned up, you can hear the sub distorting. It shakes the floor a bit but nothing huge. Planning to return this and get something more powerful.