Hello Michael, The ones listed in the Griot's catalogue are rated 139 db at 4 feet, 115 db at 6 feet, pull amps at 12 volts and come with a relay. ... NFI. -- Best regards, Bill L. mailto:pythias at pacifier.com '66 Sprite MKIII HAN8L49403 "the red thing" "I decide which car to purchase after looking at the pictures," said Tom autobiographically.