Conn Helleberg Tuba Mouthpiece June 28, 2012 by The String & Horn Shop » Products » Band » Brass Accessories » Conn Helleberg Tuba Mouthpiece Professional quality tuba mouthpiece. The Helleberg Series is named for August Helleberg of the Sousa Band, the preeminent principal tuba player of his time! Helleberg mouthpieces are renowned for deep, rich, and organ-like tones and excellent volume. A modern classic! total_sales: 0 Product Options Mouthpiece Style: -- Please Select -- 120S Combination of product variants is not available Quantity Old Price: $107.05 Price: $74.94 You save: $0.00 Updating cart...