Which has a bigger cup — Bach 1¼G or Bob Reeves CV 2.0?

The Bob Reeves CV 2.0 has a cup diameter of 29.50 mm / 1.1614 in compared to 27.50 mm / 1.0827 in on the Bach 1¼G — a difference of 2.00 mm / 0.0787 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1¼G and Bob Reeves CV 2.0?

Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.

Bach 1¼G vs Bob Reeves CV 2.0

Name: Bob Reeves CV 2.0
Brand: Bob Reeves

The Bob Reeves CV 2.0 has a wider cup diameter.

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

Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.

Mouthpiece A

Bach 1¼G

• Trombone

Material—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Mouthpiece B

Bob Reeves CV 2.0

• Trombone

Material—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

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 Bach 1¼G details Bob Reeves CV 2.0 details Bach 1¼G equivalents Bob Reeves CV 2.0 equivalents

Bach 1¼G vs Bob Reeves CV 2.0

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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