I just so happened found this sub for a great price on Amazon. My old Onkyo subwoofer gave out on me, so I was suddenly thrust into the subwoofer market. It is a great sub for the price. It is an ideal sub for a medium sized room. Great punch and responsiveness. Very well constructed. I was a bit worried about its extension (36-150Hz)and power (100W rms), but its really no concern after hearing it. I had to tinker with the receiver and sub settings to get the desired sound, but once I did, I really enjoyed what I heard. I am very proud to find a great subwoofer for a great price.