Ok I just bought them but there actual used. Listen to them a bit and liked what I heard. Ran a low freq. sweep and notice a vibration coming from inside one speaker. I could hear it from my seat. Looked inside the port and noticed the batting was completely covering the port. Shoved it over to open the port and the vibration disappeared. It may have shifted when I moved them. Disappointed that the stuffing isn't glued in as I can't be the only one that this has happened to. Other wise I am really enjoying them.