Treat a 3CPX800A7 exactly like you would a 3CX800 in GG, and it will work fine, same for the 3CPX1500A7, both can be dropped in replacements. **************The year's hottest artists on the red carpet at the Grammy Awards. AOL Music takes you there. (http://music.aol.com/grammys?ncid=emlcntusmusi00000002)