Which has a bigger cup — Bob Reeves 4G-5G or Giardinelli Sym. T?

The Bob Reeves 4G-5G has a cup diameter of 26.00 mm / 1.0236 in compared to 25.80 mm / 1.0157 in on the Giardinelli Sym. T — a difference of 0.20 mm / 0.0079 in. A wider cup generally produces a fuller, darker tone but requires more air support.

Bob Reeves 4G-5G vs Giardinelli Sym. T

Name: Giardinelli Sym. T
Brand: Giardinelli

The Bob Reeves 4G-5G has a wider cup diameter.

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

How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).

Mouthpiece A

Bob Reeves 4G-5G

• Trombone

Cup depthDeep

Best suited for

🎻Orchestral playing — large cup for full, dark tone

Mouthpiece B

Giardinelli Sym. T

• Trombone

Cup depthDeep

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Cup Depth

Both mouthpieces share a 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.

Open in interactive tool + Add third mouthpiece Bob Reeves 4G-5G details Giardinelli Sym. T details Bob Reeves 4G-5G equivalents Giardinelli Sym. T equivalents

Bob Reeves 4G-5G vs Giardinelli Sym. T

Cup Depth

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Bob Reeves 4G-5G with others

Compare Giardinelli Sym. T with others

Popular Trombone comparisons

Bob Reeves vs Giardinelli

Browse by specification