Ted Klum Acoustimax Alto SaxophoneTed Klum alto saxophone mouthpiece, VersiTone Acoustimax model. Superior Performance and Intonation The secret to the VersiTone Acoustimaxs superior response, tone and intonation is a result of Teds unique approach to the medium chamber alto design. This designs unique combination of material with a clear core conical chamber results in a mouthpiece with extraordinary projection, power and warmth and a noticeable improvement in the upper register of