Bob Reeves vs Kelly Trombone Mouthpieces

Bob Reeves offers 19 trombone mouthpieces (made in United States), while Kelly has 17 models (made in United States). On average, Bob Reeves cups measure 26.23mm versus 25.86mm for Kelly. Below we compare both lineups side by side to help you choose the right brand for your playing style.

Bob Reeves

Models19
Avg cup26.23mm
Avg throat
Common style
CountryUnited States
vs

Kelly

Models17
Avg cup25.86mm
Avg throat
Common styleBass
CountryUnited States

All models

Frequently asked questions

Which brand makes better trombone mouthpieces — Bob Reeves or Kelly?

Neither brand is universally better. Bob Reeves has 19 models and Kelly has 17. The best choice depends on your playing style, preferred cup depth, and tonal goals. Compare specific models head-to-head to find the right fit.

How do Bob Reeves and Kelly trombone mouthpieces compare in size?

Bob Reeves averages 26.23mm cup diameter with N/Amm throat. Kelly averages 25.86mm cup diameter with N/Amm throat.