The 1650 XO Brass Double Horn
The 1650 XO Brass Double Horn
The1634 Tenor Trombone
The1634 Tenor Trombone
The XO Brand - Designed for Excellence
The XO Brand - Designed for Excellence

XO Arts

This horn is consistently warm sounding and easy to play on both sides of the instrument, making it the best new double horn option out there.
- Jennifer Kummer, XO Artist
"The XO 1634 is a groundbreaking instrument, combining that classic sound with a lightweight feel and a quick, free-blowing response, facilitating an ease of playing like no other horn of its kind."
- John Fedchock, XO Artist & 1634 Developer
"XO Trumpets are designed to deliver a gorgeous sound with an even register. This evenness allows me to play very efficiently, keeping clarity of tone and brilliance all the way through the most demanding performances."
- Steve O'Connor, Presidio Brass
I'm a huge fan of the XO euphonium. The tone, pitch, and ergonomics are fantastic and allow me to do what I need to do without having to fight the instrument. It's the best pro horn I've played.
- Lance LaDuke


XO artists John Fedchock and Jennifer Wharton at their recent clinic at the Iolani School in Honolulu, Hawaii! #xobrass John Fedchock Jennifer Wharton’s Bonegasm
XO Brass artist Darren Kramer will be presenting "Trombonology: Revealing The Magic & Mystery of the Trombone" this Friday, September 22nd at TEDxBoulder! #xobrass Learn more and get tickets: https://tedxboulder.com/ ElektroHornz
XO artist Brad Ulrich will be performing his 35th Anniversary Recital at Western Carolina University tomorrow, September 19th at 7:30pm! #xobrass
XO artists Brad Goode and Roger Ingram giving a masterclass at Ellman's Music Center #xobrass