Detail 01
Large shank
Fits large-bore tenor and bass trombones. A small or medium bore horn needs the small-shank version instead.

Independent shopping perspective
Large-shank trombone mouthpiece, model 47, gold-plated. A mid-size cup for large-bore tenor players who don't want the weight of a 51 or 52.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Fits large-bore tenor and bass trombones. A small or medium bore horn needs the small-shank version instead.
Detail 02
On the small side for a large-shank piece. Easier endurance and upper register than the 51 or 52, with less low-end spread.
Detail 03
Standard bore through the mouthpiece. Moderate resistance — it holds the sound together rather than blowing wide open.
Detail 04
Softer and warmer on the lips than silver, and avoids nickel reactions. Slightly grippier when the rim gets wet.
Detail 05
The 51 is wider with a large bowl cup for orchestral weight. The 47 trades that fullness for response and staying power.
Detail 06
The 47C4 has the same cup with a wider, semi-flat rim. Pick it if you want more contact area spreading the pressure.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It follows your horn's receiver. Large-bore tenor and bass trombones take large shank; small and medium bore tenors take small shank. Check before ordering.
It's on the smaller end for a large bore, which many players want for endurance and upper register. For a broader orchestral sound, step up to a 51 or 52.
No. Bass trombone needs a much larger cup — the 58, 59 or 60 in this line, with wider throats for the low register.
It wears at the rim over years of regular playing and can be replated. Day to day it feels softer than silver and won't trigger nickel sensitivity.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.