Hi My biggest toy is a 17metre articulated partybus with: Sony CD Header 2x 500W Sony amps Bose301 front speakers JBL 6x9 rear Kenwood Subwoofer The bus rocks. It is powered by a Dick Smith 20A 24v to 12v dropper. Is this enough? Can I run two droppers in parallel? Andy Chalkley Perth Party Bus Perth Bus