Which has a bigger cup — Denis Wick 6BL or Giardinelli 4M?

Both mouthpieces have virtually identical cup diameters at 25.40 mm / 1.0000 in.

How does cup depth compare between Denis Wick 6BL and Giardinelli 4M?

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

Denis Wick 6BL vs Giardinelli 4M

Name: Giardinelli 4M
Brand: Giardinelli

the Denis Wick 6BL has a larger throat opening.

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

Denis Wick 6BL

• Trombone

BackboreV-type

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Giardinelli 4M

• Trombone

Backbore1/4" (.250)

Best suited for

📣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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Denis Wick 6BL vs Giardinelli 4M

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Denis Wick 6BL with others

Compare Giardinelli 4M with others

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Denis Wick vs Giardinelli

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