i know some of there boards are the same as american bass boards //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
out of manufacture. chunglam(sp) i believe.they do rated power and seem to be well built. I can't get the guy I know that has 2 2500's drop his down below 1 ohm though.