Sometimes, like in another post Bob Carvers stuff is hit or miss on somethings. I know a guy here at work that went through 2 Sunfire subs on his stereo before he got the 3rd. He listens to death-metal music and usually that type of music rarely has anything below 40HZ in it. It's a wonder you didn't have any trouble with them hitting 16Hz notes on the organ. Bill W.