I had a red RoadMaster 'subwoofer' I put it in a tube, and gave it 800WRMS, and I couldn't even play 20 seconds into the beginning of November Rain by Guns N' Roses before it popped. They're some craptacular speakers that get quiet off of 10 watts before they pop... //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif