It goes to eleven. This is an original box Dukoff Super Power Chamber alto piece. Are you in a college pep band and sick of getting drowned out by the trumpets? Do you need to cut through a rock band on alto? Say hi to your new friend. Once you get used to the large tip opening, you can put a ton of air through your horn and really scream on this piece. Better workmanship on this than on the modern Dukoff pieces. Includes original box, ligature and cap.