The 204MS features a rich vibrant sound with excellent tonal projection. Yamaha R&D conducted extensive field tests with leading bands, and has redesigned the bracing for a more open 'free-blowing' feel. The overall balance has also been changed making it more comfortable to hold and play, while the slide configuration has been reworked improving both intonation and tone qualities.

• Well balanced: all Yamaha marching instruments as well-balanced, so they are easy to hold maneuver while marching
• Hand-fitted valves and slides: hand-fitted ensures an absolutely perfect fit and seal between the valve pistons and casing or slide parts; such a fit helps to achieve smooth air flow and smooth action, and improves the response and intonation of thee instrument
• Laser-fused pluzuma-welded bells: a high-energy laser fuses the brass together for a virtually seamless bell, which results in continuous, even vibrations
• Pressure-formed tubing: the perfectly rounded tubing results in less turbulence and a smoother air flow, thus making possible an excellent scale and reduced resistance
• Heavy bracing: all Yamaha marching instruments have heavy bracing throughout, so they are more durable at vulnerable points and can withstand the rigors of use in a marching band
• 1st valve thumbhook: all marching brass (except for the YEP-201M) feature a 1st valve thumbhoook for intonation adjustments

Availble in:
• YMP-204MS Silver-plated Finish
• YMP-204M Clear Lacquer Finish