Name: Yamaha SL-51C4L
Brand: Yamaha

Question 1

What is the difference between Bach 12E and Yamaha SL-51C4L?

Accepted Answer

The Yamaha SL-51C4L has a wider cup diameter, the Yamaha SL-51C4L features a deeper cup, the Yamaha SL-51C4L has a larger throat opening.

Question 2

Which has a bigger cup — Bach 12E or Yamaha SL-51C4L?

Accepted Answer

The Yamaha SL-51C4L has a cup diameter of 25.23 mm / 0.9933 in compared to 24.50 mm / 0.9646 in on the Bach 12E — a difference of 0.73 mm / 0.0287 in. A wider cup generally produces a fuller, darker tone but requires more air support.

Question 3

How does cup depth compare between Bach 12E and Yamaha SL-51C4L?

Accepted Answer

The Yamaha SL-51C4L has a medium cup while the Bach 12E 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, Bach 12E or Yamaha SL-51C4L?

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.

Bach 12E vs Yamaha SL-51C4L

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