Summary: After much review and my budget finally allowing me to purchase this sub, I am happy and disappointed at the same time. While is sounds good at mid to low volume, when I turn it up there is rattling inside the enclosure itself. Mind you, I'm not pushing it anywhere near its limits. While it is rattling, if I sit or push down on the enclosure the rattling stops. As soon as I let up pressure on the enclosure it begins again.
Summary: I did a lot of research and read plenty of reviews before buying this product but unfortunately I was not impressed at all. There are only 6 reviews on Amazon so that should have told me something I guess. All the reviews were quite encouraging though. I have had the Klipsch RW10d for about 6 years and I wanted to upgrade but this wasn't a good replacement. The RW10d performs so much better. I love Klipsch speaker but this is not for me.