Summary: I am used to loud music as I am a musician, I really like the power of this Sub, very clean sound and will really thump your soul, only thing that I can say anything negative about is you better have room for it, if you are in a small area it takes up some space... well worth the 220 bucks I paid...
Summary: Harmon Kardon customer service is horrible! Have had a problem, and can only reach employees in India! No US person will answer the telephone! The India people will not transfer to a USA employee. Beware if you ever need service or help with a Harmon Kardon product.
Summary: Pros - Great strong tight bass. Hard hitting. Cons - Cheap cloth speaker cover, it's HUGE! Conclusion - Sounds amazing, Can take dual or single rca imputes. Make sure you have room for this bad boy before ordering.
Summary: **I have had this sub for 3 years, and it is still pumping out bass that makes my heart thump.** I am a big time audiophile. So I did a lot of research when I was piecing together my home theater.
Summary: I have a 12 speaker sound system, all Infinity. I have tried everything else except the extremely expensive stuff and Infinity is far and away superior sound for my ears, maybe not for yours. Everybody's ears are different. This 12" sub with 400 watts puts out incredible woof. I now have 2.