Conn EP501 Bb Euphonium

Euphonium designed for advanced students and professionals. It features a 3+1 valve configuration with top-action and side-action valves. The bore measures 0.591" to 0.661", and the bell diameter is 11.8 inches. The instrument is made of yellow brass with a clear lacquer finish. It includes a gold brass leadpipe, nickel silver outer slides, and comes with a Vincent Bach 6 1/2AL mouthpiece and a lightweight case.