Description Product Description Yamaha's third generation of heavyweight trumpets combines the company's knack for computer-controlled technology with its passion for handcrafting engineering. The professional Xeno series trumpet delivers a great example of bringing these forces together FEATURES Monel pistons Monel pistons are resistant to corrosion and are an ideal choice for professional trumpet pistons which must retain precise fit and smooth action over many years. Annealed bell Yamaha employs special computer-controlled annealing equipment to ensure that the end result of this heating and cooling process is a consistently superior sound. Hand-lapped pistons and slides Hand-lapping pistons and slides ensures an absolutely perfect fit and seal between the pistons and casing or slide parts. Such a perfect fit helps to achieve smooth air flow and smooth action and improve the response and intonation of the instrument. New mouthpiece receiver length Enhances the responsiveness of the instrument. Improved braces between valve castings Add vibrancy and "life" to the sound of the horn. Pressure-formed tubing Perfectly rounded tubing results in less turbulence and a smoother air flow, thus allowing for an excellent scale and reduced resistance. Laser-fused pluzuma-welded bell A high-energy laser fuses the brass together for a virtually seamless bell which allows continuous even vibrations. One-piece drawn leadpipe This type of leadpipe offers excellent intonation, response and proper resistance. Single main tuning slide brace The main tuning slide on the YTR-8445 has a single brace which helps the response and tonal color of the instrument. Specially treated metal Through research, Yamaha d