essentially it's a like a sub box but for a speaker. I built some for my fronts out of MDF speaker rings and a 1/4" MDF cap. They help tighten bass response. if you're really brave, you can design them to be ported, but that requires math in the morning. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif
essentially it's a like a sub box but for a speaker. I built some for my fronts out of MDF speaker rings and a 1/4" MDF cap. They help tighten bass response. if you're really brave, you can design them to be ported, but that requires math in the morning. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif