Yamaha Model YTR-8345IIRS 'Xeno' Professional Large Bore Bb Trumpet

The Yamaha YTR-8345IIRS Xeno stands among the top-tier professional Bb trumpets — designed for players who need power, projection, and flexibility across jazz, symphonic, big-band and commercial work.

Key Features & What They Deliver

• Large Bore (0.462") — The 0.462" bore produces a broad, rich, and powerful sound with plenty of volume and depth, perfect for projecting over ensembles or standing out in lead trumpet parts. 

• 1-Piece Yellow-Brass Bell (4 7/8″ / 4.87″) — Hand-drawn and annealed for responsiveness, this bell gives a strong tonal core, excellent projection, and clarity across all registers. 

• Reversed Leadpipe & Optimized Valve/Branch Tubing Design — The reversed leadpipe improves airflow and produces a smooth, harmonically rich tone with controlled resistance, making the trumpet feel free-blowing yet focused. 

• Monel Pistons in Extra-Thin Valve Casings with Optimized Knuckle Angle — Delivers smooth, fast valve action and excellent reliability, helping with crisp articulation and consistency in dynamic playing. 

• Thumb Saddle on First Valve Slide & Enhanced Water-Key Design — Allows on-the-fly tuning adjustments, while the improved water key system enhances responsiveness and controls water accumulation during play. 

• Silver-Plated Finish + Included TR-16C4 Mouthpiece and Double Case — The silver plating gives a professional aesthetic and durability; inclusion of mouthpiece + high-quality double case adds value and makes the horn performance-ready right out of the box. 

What This Horn Brings to Musicians

• Powerful, projecting sound — Great for orchestras, big bands, commercial gigs, or any setting where you need to cut through the mix.

• Rich tonal color & versatility — The combination of bore, bell, and leadpipe design allows for warm, full-bodied tone or bright, cutting lead sound depending on your style and technique.

• Responsive and playable — Smooth valve action and optimized airflow deliver fast articulation, consistent response, and dependable tuning even under demanding playing.

• Pro-level reliability — Built to professional standards, with quality materials and craftsmanship that hold up under frequent playing, touring, and varying performance conditions.

• All-in-one starter package — Comes ready to play with a solid mouthpiece and protective case — ideal for musicians upgrading to a pro horn or investing in a lifetime instrument.