"Good Bass, but there are better options at this price."2.0 starson by MrPorterhouse
Pros: Great Bass Output. Good Bass Extension
Cons: Bottoms out fairly easily. Audible port noise. Slightly Boomy
Summary: If you've heard this sub then you know it can pound. There is no doubt that the Klipsch Sub-12 can deliver plenty of bass output for medium to large size room. Also, the Sub-12 can extend down impressively low, which is great for Home Theater because it allows you to experience movies with great LFE soundtracks in the manner in which the director intended.
So, what's the drawbacks? Well, not much for the average consumer, however, upon a critical evaluation, the overall sound is slightly boomy and when pushed hard the port noise becomes excessive and it bottoms out. Nearly all subs can bottom out, so that's not abnormal, but I felt the Sub-12 bottomed out a tad too easily for its price.
And, that brings me to the biggest drawback...price. $400-$500 marks a price where there are some serious contenders, especially from internet only companies. I won't mention any of those companies here, but for less than $500 you can get a subwoofer from several companies that will perform at a much higher level than the Sub-12, in terms of shear output, extension, and tonal character. If you don't have access to or aren't comfortable with online retailers, than the Klipsch Sub-12 is a very solid choice to compliment a home theater or home audio system. My rating of 4/10 does not relate to raw performance. On performance, I'd probably give a 6 or 7, but the price vs performance factor drags down my rating to a 4/10 because there are better options at this price.