S.E. Shires New Classic 1/2 XD Silver Plated SP, Large Bore Bass Trombone Mouthpiece ★ Cup Inner Diameter: 29.5mm ★ Throat Diameter: 8.5mm ★ Cup Depth: Extra Deep ★ Purchased new, used only a few times, in excellent condition. Suggested Retail Price (including tax): ¥25,000 The New Classic model has a slightly medium-heavy body shape compared to the current Vintage series. It's a modern American type that combines a powerful tone with controllability. The 1/2 XD has the largest diameter and deepest cup in the series, demonstrating its power in the dynamic low range. While the high range requires skill, it doesn't feel as heavy to play as it looks. It's one of the largest mouthpieces on the market, and it's incredibly effective in those "I need a really big mouthpiece" situations, delivering unparalleled power in a pinch.