Summary: I tried it as soon as it arrived and it seemed to work ok , but I thought it would have a little more punch to it. Haven't been able to use it lately because it was bought as a Christmas present and I will have to wait!
Pros: Shipping was excellent, it arrived before the expected date. The price seemed to be fair, but will have to wait until I can really try it to be sure.
Cons: It did seem a little weak on the bottom end, but again will have to wait till after Christmas to really be sure!
Summary: This sub was a nice addition to my bedroom system. I added it to some 21 year old Klipsh Forte II. The low frequency response is the same between the speakers and the sub, and the sub sound was kind of hidden. So, I switched the phase switch to 180, and the sub now produces a nice punchy bass.
Pros: Great price. Solid grill to protect woofer in high traffic areas. As always with Polk speakers, nice clean sound.
Summary: I believe it's a pretty good buy.. I started to buy a Yamaha 8' powered woofer but I wanted something with more power and a deeper bass.. so far not bad to say I got this a good price. I haven't quite cranked up the volume to see what it can really do, but at level 15 it hums to my satisfaction...
Pros: Nice accent bass
Cons: Not as a fierce as I would like... may get another one to get the fierce bass I want
Summary: This sub fills in our living room home theatre quite well, and matches our classic Polk Monitor speakers just fine. We run it at abour half volume and 80 Hz or so for most all movies, then turn it up a bit when playing CDs.
Summary: It's perfect for a small, asymmetric living space in a basement apartment. Positioning of the speaker in this instance is somewhat limited, but I did achieve a satisfactory overall soundscape by putting the subwoofer near an adjacent wall, next to the right LSi9 bookshelf speaker.