Which has a bigger cup — Bach 12E or Yamaha SL-48DS?

The Yamaha SL-48DS has a cup diameter of 25.25 mm / 0.9941 in compared to 24.50 mm / 0.9646 in on the Bach 12E — a difference of 0.75 mm / 0.0295 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 12E and Yamaha SL-48DS?

The Yamaha SL-48DS has a deep 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.

Bach 12E vs Yamaha SL-48DS

Name: Yamaha SL-48DS
Brand: Yamaha

The Yamaha SL-48DS has a wider cup diameter, the Yamaha SL-48DS features a deeper cup, the Yamaha SL-48DS has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

Surface plating or treatment (e.g. silver plate, gold trim). Affects feel, durability, and appearance.

Mouthpiece A

Bach 12E

• Trombone

Finish—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Yamaha SL-48DS

• Trombone

Finish—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Which is better?

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.

Open in interactive tool + Add third mouthpiece Bach 12E details Yamaha SL-48DS details Bach 12E equivalents Yamaha SL-48DS equivalents

Bach 12E vs Yamaha SL-48DS

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Bach 12E with others

Compare Yamaha SL-48DS with others

Popular Trombone comparisons

Bach vs Yamaha

Browse by specification