Which has a bigger cup — Bach 5GS (large shank) or Bach 5GS (small shank)?

Both mouthpieces have virtually identical cup diameters at 25.50 mm / 1.0039 in.

How does cup depth compare between Bach 5GS (large shank) and Bach 5GS (small shank)?

Both mouthpieces share a deep cup depth, so the sound character from depth alone will be very similar.

Bach 5GS (large shank) vs Bach 5GS (small shank)

Name: Bach 5GS (small shank)
Brand: Bach

Both mouthpieces share similar core dimensions — the differences are in the details.

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

The taper behind the throat leading to the shank. Affects projection and tone character.

Mouthpiece A

Bach 5GS (large shank)

• Trombone

Backbore—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Mouthpiece B

Bach 5GS (small shank)

• Trombone

Backbore—

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.

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Bach 5GS (large shank) vs Bach 5GS (small shank)

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Bach 5GS (large shank) with others

Compare Bach 5GS (small shank) with others

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