# Which trombone has the largest bell size for a fuller sound? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which trombone has the largest bell size for a fuller sound?

## Products

### S.E. Shires Blair Bollinger Artist Series Professional Bass Trombone with Axial-Flow Valves
```yaml
product: s-e-shires-blair-bollinger-artist-series-professional-bass-trombone-with-axial-flow-valves
brand: S.E. Shires
price_gbp: 1646.2
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: S.E. Shires
model: STBBO
bore_size: .562/.578 in dual-bore
valve_type: Independent axial-flow valves
slide_material: Yellow brass
```

- **Price:** £1646.2 [^1]
- **Summary:** This professional bass trombone features a 9.5 in hand-hammered yellow-brass Bollinger bell, independent axial-flow valves, and a custom-weight dual-bore handslide. It suits advanced and professional orchestral players seeking a broad sound, quick response, and flexible tuning.
- **Ideal For:** It suits players seeking the largest bell size for a fuller sound because it has a 9.5 in Bollinger bell in medium-weight yellow brass, designed to produce a broad orchestral tone.
- **Additional Sources:** [^2], [^3]

### Greenhoe GC5-3R-TIS Independent Bass Trombone Rose Brass Bell
```yaml
product: greenhoe-gc5-3r-tis-independent-bass-trombone-rose-brass-bell
brand: Greenhoe
price_gbp: 6126.94
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
brand: Greenhoe
model: GC5-3R-TIS
bore_size: .562 in
valve_type: Independent Greenhoe Valves
slide_material: Rose Brass
```

- **Price:** £6126.94 [^4]
- **Summary:** The Greenhoe GC5-3R-TIS is a professional bass trombone with a 9.5 in rose brass bell, .562 in bore, independent valves, and a tuning-in-slide design. It suits orchestral, commercial, studio, big band, and chamber players seeking a broad, resonant sound with modern responsiveness.
- **Ideal For:** This model suits players seeking the largest bell size for a fuller sound because its 9.5 in rose brass bell provides broad tonal depth and projection.

---
## References & Sources
[^1]: Music & Arts, accessed 2026-09-13. https://www.musicarts.com/se-shires-blair-bollinger-artist-series-professional-bass-trombone-with-axial-flow-valves-main0537748
[^2]: Guitar Center, accessed 2026-09-13. https://www.guitarcenter.com/SE-SHIRES/Blair-Bollinger-Artist-Series-Professional-Bass-Trombone-with-Axial-Flow-Valves-Lacquer-Yellow-Brass-Bell-1500000432811.gc
[^3]: Band Equipment Store, accessed 2026-09-13. https://www.bandequipmentstore.com/product/s-e-shires-tbbo-blair-bollinger-artist-model-bass-trombone-with-bollinger-tuning-system-axial-flow-attachment/
[^4]: The Brass Exchange, accessed 2026-09-13. https://www.thebrass-exchange.com/content/greenhoe-bass-trombone-independent-tis-rose-brass