Bob Reeves CV 2.0 vs Giardinelli 1G
The Bob Reeves CV 2.0 has a wider cup diameter.
Mouthpiece A
Bob Reeves CV 2.0
• Trombone
Cup diameter29.50 mm / 1.1614 in
Cup depthVery deep
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Giardinelli 1G
• Trombone
Cup diameter27.00 mm / 1.0630 in
Cup depthVery deep
Rim width—
Throat diameter7.15 mm / 0.2815 in
Backbore18/64 (.281)"
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
The Bob Reeves CV 2.0 has a cup diameter of 29.50 mm / 1.1614 in compared to 27.00 mm / 1.0630 in on the Giardinelli 1G — a difference of 2.50 mm / 0.0984 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.
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.