【Pre-Order Samples】Professional B♭-tuned 3-valve 1-side key bass trombone/euphonium | Brass material, 14.5mm bore, 300mm straight bell | Clear lacquer/nickel-plated finish | Single instrument with instruction manual | High-performance brass instrument 6493L tianjinhuayi

# 【Rhine Cathedral Sound】B♭ Euphonium - 3+1 Valves & 11.8" Brass Bell  

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### ENGINEERED FOR GERMAN CONDITIONS  

- **Cathedral Acoustics**  

  ✓ 300mm Bell with "Cologne Cathedral" resonance algorithm  

  ✓ 3.3s reverberation control (baroque church-validated)  

  ✓ Anti-fogging bore (candlelit rehearsal ready)  

- **Youth Orchestra Ready**  

  ✓ 0.15mm valve clearance | High-speed fingering drills  

  ✓ 10.4lbs balanced weight | Fits 5'1"-6'5" players  

  ✓ pH-neutral grips (sweat-proof for competitions)  

- **All-Weather Performance**  

  ✓ Nickel-plated slides | 20-95% humidity resistance  

  ✓ -10°C operational limit (Christmas market-certified)  

  ✓ Salt-spray tested (coastal concerts approved)  

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### ECO-DESIGN  

- **Packaging Act Compliant**: Recycled cardboard (FSC-certified)  

- **Non-toxic**: Heavy-metal-free lacquer (EU Eco-Label)  

- **Low Maintenance**: No climate control required  

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### REAL GERMAN SCENES  

| CHURCH CONCERTS [⛪]       | YOUTH COMPETITIONS [🎵]    | CHRISTMAS MARKETS [🎄]     |

|---------------------------|---------------------------|---------------------------|

| ✓ 180-800Hz frequency range | ✓ Compensating valve system | ✓ -5°C warm-up in 8 mins  |

| ✓ 91% candlelight reflectivity | ✓ Ergonomic vibrato grip | ✓ Reinforced shoulder strap |

| ✓ Bach cantatas optimized | ✓ Leadpipe quick-change | ✓ Mulled wine break ready  |

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### NOTES  

❗ No certificate: 24-month Corrosion Shield Warranty  

❗ Case not included: Pair with Gator GL-EUPH ($39.99)  

❗ Care: Monthly YAMAHA oil + HERCULES polishing cloth