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

Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.

Mouthpiece A

Denis Wick 6BL

• Trombone

Material—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Giardinelli 4M

• Trombone

Material—

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.

Open in interactive tool + Add third mouthpiece Denis Wick 6BL details Giardinelli 4M details Denis Wick 6BL equivalents Giardinelli 4M equivalents

Denis Wick 6BL vs Giardinelli 4M

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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Denis Wick vs Giardinelli

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