Which has a bigger cup — Denis Wick 6BS or Denis Wick 9BL?

The Denis Wick 6BS has a cup diameter of 25.40 mm / 1.0000 in compared to 25.00 mm / 0.9843 in on the Denis Wick 9BL — a difference of 0.40 mm / 0.0157 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Denis Wick 6BS and Denis Wick 9BL?

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

Denis Wick 6BS vs Denis Wick 9BL

Name: Denis Wick 9BL
Brand: Denis Wick

The Denis Wick 6BS has a wider cup diameter.

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

The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.

Mouthpiece A

Denis Wick 6BS

• Trombone

Throat diameter6.66 mm / 0.2622 in

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Denis Wick 9BL

• Trombone

Throat diameter6.66 mm / 0.2622 in

Best suited for

📣High-volume projection — open throat for power

Throat Diameter

Throat diameters are essentially identical at 6.66 mm / 0.2622 in, so resistance feel will be comparable.

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 6BS details Denis Wick 9BL details Denis Wick 6BS equivalents Denis Wick 9BL equivalents

Denis Wick 6BS vs Denis Wick 9BL

Throat Diameter

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Denis Wick 6BS with others

Compare Denis Wick 9BL with others

Popular Trombone comparisons

Browse by specification