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.
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.
Hand-hammered one-piece bell
A one-piece bell has an axial (lengthwise) seam, making it a continuous extension of the instrument's material. This results in pure, uniform resonance and superior tone. A hammered yellow brass bell produces a perfectly-balanced tone with quick response and extra presence due to advanced manufacturing.
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.
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 gold brass leadpipe
This type of leadpipe offers excellent intonation, response and proper resistance.
Single main tuning slide brace
The main tuning slide on the YTR-6445HII has a single brace which helps the response and tonal color of the instrument.
Specially treated metal
Through research, Yamaha designers have developed a process for treating metal that enables the heavyweight trumpets to deliver more power, better control, and richer sound.
Leadpipe thickness
The thickness of the leadpipe helps the trumpet have a better tone and response.
Metal thickness
The heavyweight trumpets have heavier metal through the instrument than the standard weight trumpets. Thicker metal helps the trumpets deliver a darker tone that does not break up with volume.
Metal valve guides
Darkened sound and improved tonal projection are the result of metal valve guides.
Valve casings
Two-piece nickel/brass valve casings help create a darker tone on the heavyweight trumpets.
Available features
The YTR-6445HII is also available with a gold brass bell (YTR-6445HGII). Both models are available silver-plated (YTR6445HSII, YTR-6445HGSII) or without case.
Technology
Audio & Video
Specs
Specifications
| Bore | .462" | |
|---|---|---|
| Bell | 4-7/8" hammered and annealed one-piece yellow brass bell | |
| Pistons | Monel pistons are a primarily nickel and copper alloy. | |
| Clear Epoxy Lacquer | Microscopic, electrically-charged particles of lacquer are attracted to and deposited evenly on the surface of the instrument carrying the opposite charge. This produces an exceptionally thin, uniform coating that can be oven-hardened for maximum durability without compromising the instrument's sound. The sound produced is a solid, somewhat harder sound than silver-plate finishes. | |
| Gold brass leadpipe | Gold brass is extremely resistant to wear and corrosion and when used in a leadpipe it ensures long-term precision. | |


