Bob Reeves 42S 69
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Reference Notes
The Bob Reeves 42S 69 is a shallow-cup Bb trumpet mouthpiece featuring a 16.67mm rim diameter and 3.57mm throat. It has a lead-69 backbore, standard shank. Well-suited for lead and commercial playing. Use these measurements as a comparison starting point: fit and response still depend on the player, dental structure, instrument receiver, and each manufacturer's measuring method.
Where the 42 Family Sits
In Bob Reeves terms, the 42 family is the balanced middle of the trumpet line: not as compact as the 41 branch, not as broad as the 43 and 43.5 branch. If the 43 family is the larger West Coast studio-orchestral zone, the 42 family is the “start here” reference point for players who want a Reeves rim with normal proportions, a soft bite, and room to move between underparts without changing face feel.
On BrassFit, treat this page as the neutral fit-and-context guide. Use the spec table above for exact dimensions on this listing, then use the Reeves system guide to interpret what the cup, backbore, shank, and sleeve choices mean in practice.
Why Players Start Here
| Question | Neutral read |
|---|---|
| Coming from a Bach 3C / 5C zone? | The 42 family is usually the least disruptive entry point into the Reeves system. |
| Need one rim across multiple underparts? | Strong candidate. The 42 branch is often the “default rim, different job” choice. |
| Want a soft bite rather than a sharper Mt. Vernon-style feel? | Yes. The 42 branch sits in the rounded, less grabby part of the catalog. |
| Need maximum orchestral breadth or the biggest face feel? | Look at the 43 / 43.5 branch before deciding. |
How the 42 Family Differs from 43 / 43.5
| Family | Typical feel | Why you would pick it |
|---|---|---|
| 42 family | Mid-size, soft bite, neutral centre | Reference point for all-around use and modular experimentation |
| 43 family | Larger feel with more breadth on the face | Studio/orchestral players wanting a bigger footprint |
| 43.5 branch | Largest common pro size in this cluster | Players who already know they prefer the 1½C / large orchestral zone |
The practical question is not “which one is best” but which rim size lets you keep the same contact point while the underpart changes. That is the whole logic of the Reeves modular system.
What to Verify Before Outreach or Purchase
| Check | Why it matters |
|---|---|
| Shank type | A 42-family flugelhorn setup, trumpet setup, and crossover setup can share naming language but not the same receiver fit. |
| Cup code | The rim family does not tell you whether the cup is commercial, orchestral, or crossover. |
| Sleeve compatibility | If the piece is cut for Reeves Sleeves, gap setup becomes part of the final playing result. |
| Source page | Dealer listings often collapse variants together. Always verify against a manufacturer or established dealer reference. |
Reference Trail
Bob Reeves system guide
Cup numbering, Reeves Sleeves, backbores, artist setups, and fit context.
Bob Reeves 42-family reference
Neutral read on the workhorse mid-size Reeves branch and what to verify before ordering.
Bob Reeves 43-family reference
How the 43, 43N, 43W, and 43.5 branch differs in feel and use case.
Independent BrassFit reference note. No performance claims, ratings, or availability are inferred beyond the structured specs shown on this listing.
Brand Deep Dive
Source Posture
BrassFit treats Bob Reeves pages as neutral reference pages. Exact dimensions above are the structured listing data for this model. If you spot a spec mismatch, missing variant, or outdated source page, send a correction before outreach so the cluster stays manufacturer-safe.