Bob Reeves 43/FE vs Bruno Tilz 210-S 4 E
The Bob Reeves 43/FE has a wider cup diameter, the Bob Reeves 43/FE features a deeper cup.
Mouthpiece A
Bob Reeves 43/FE
• Flugelhorn
Cup diameter17.07 mm / 0.6720 in
Cup depthMedium
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
vs
Mouthpiece B
Bruno Tilz 210-S 4 E
• Flugelhorn
CatalogCup diameter16.50 mm / 0.6496 in
Cup depthShallow
Rim width—
Throat diameter3.50 mm / 0.1378 in
Backbore—
Finish—
Material—
Best suited for
Screamer / high notes — tight throat with shallow cup
Cup Diameter
The Bob Reeves 43/FE has a cup diameter of 17.07 mm / 0.6720 in compared to 16.50 mm / 0.6496 in on the Bruno Tilz 210-S 4 E — a difference of 0.57 mm / 0.0224 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bob Reeves 43/FE has a medium cup while the Bruno Tilz 210-S 4 E has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.