Monette B4S S2 vs Warburton 5M
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Monette B4S S2
• Trumpet
Cup diameter16.20 mm / 0.6378 in
Cup depthShallow
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
Best suited for
Lead / commercial — shallow cup for brightness and range
vs
Mouthpiece B
Warburton 5M
Silver plate · Trumpet
VersatileCup diameter16.20 mm / 0.6378 in
Cup depthShallow
Rim width6.40 mm / 0.2520 in
Throat diameter3.66 mm / 0.1441 in
Backbore—
FinishSilver plate
Material—
Best suited for
Lead / commercial — shallow cup for brightness and range
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 16.20 mm / 0.6378 in.
Cup Depth
Both mouthpieces share a shallow cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
Throat diameters are essentially identical at 3.66 mm / 0.1441 in, so resistance feel will be comparable.
Finish
The Monette B4S S2 is listed as unspecified, and the Warburton 5M as Silver plate. Finish mainly changes lip feel, tarnish resistance, and appearance rather than cup geometry.
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.