Name: Yamaha SL-48S-GP
Brand: Yamaha

Question 1

What is the difference between Bob Reeves 11C and Yamaha SL-48S-GP?

Accepted Answer

The Yamaha SL-48S-GP has a wider cup diameter, the Yamaha SL-48S-GP features a deeper cup.

Question 2

Which has a bigger cup — Bob Reeves 11C or Yamaha SL-48S-GP?

Accepted Answer

The Yamaha SL-48S-GP has a cup diameter of 25.25 mm / 0.9941 in compared to 24.80 mm / 0.9764 in on the Bob Reeves 11C — a difference of 0.45 mm / 0.0177 in. A wider cup generally produces a fuller, darker tone but requires more air support.

Question 3

How does cup depth compare between Bob Reeves 11C and Yamaha SL-48S-GP?

Accepted Answer

The Yamaha SL-48S-GP has a medium cup while the Bob Reeves 11C has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Question 4

Which is better, Bob Reeves 11C or Yamaha SL-48S-GP?

Accepted Answer

Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.

Bob Reeves 11C vs Yamaha SL-48S-GP

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