Bruno Tilz 304- S 2 vs Giardinelli 4M
The Giardinelli 4M has a wider cup diameter, the Giardinelli 4M has a larger throat opening.
Mouthpiece A
Bruno Tilz 304- S 2
• Baritone / Euphonium
CatalogCup diameter23.00 mm
Cup depthMedium
Rim width—
Throat diameter4.60 mm
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli 4M
• Baritone / Euphonium
Cup diameter25.40 mm
Cup depthMedium
Rim width—
Throat diameter6.40 mm
Backbore1/4" (.250)
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Giardinelli 4M has a cup diameter of 25.40 mm compared to 23.00 mm on the Bruno Tilz 304- S 2 — a difference of +2.40 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Giardinelli 4M has a wider throat (6.40 mm vs 4.60 mm). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.