About XO

The high-quality instruments created by XO offer all players limitless possibilities for the highest level of artistic expression.
–Koichi Haido, Founder of XO Sophisticated Brass

The Origins of XO

The XO brand began with the vision of Koichi Haido, Chief Instrument Technician at the Global Corporation in Japan. After many experiments and countless prototypes, the first XO trumpet was introduced to the market in 1995.

With vast experience in instrument making and prowess as a trumpet player, Haido continues to explore innovative approaches to meet perfection. He pushes the limits to reach the goal of providing a comfortable and enjoyable playing experience for every performer. Koichi hopes XO can empower musicians to deliver excellence in tone and performance for diverse musical genres, allowing players to easily achieve their own personal sound. Building upon the success and popularity of the original offering, XO works to continually expand its lineup with the development of exquisite and innovative instruments to support the artistic expression of every musician.

Along for Your Musical Journey…

Every musician’s journey is their own, and unique to them. However, they all have one objective in common: to share the wonders of music with audiences through a perfect performance.
Combining contemporary precision with traditional craftsmanship results in ideal instruments for professional players. Through close consultation with both musicians and technicians, we work towards building a more intimate connection between artist and instrument. The unrivalled playability of every XO instrument ensures delivery of precise intonation and sumptuous sonority: the perfect conduit for the master performer's musical and artistic voice.

A Lifelong Companion

While good craftsmanship depends on the use of the right tool, we understand that the relationship between the musician and their instrument is far more personal.
The instrument becomes an extension of ones musical voice and must both empower and complement the skills of the player. The RIGHT instrument becomes a valued companion throughout a lifetime of practice and performance: a conduit for artistic vision.

TOP