Since November 2014 I'm a Sterling Virtuoso Artist and I play exclusively on a Sterling Virtuoso Euphonium. The instrument I play is a Heavy Gold Bell, 300 mm with a trigger.
The playing on a Sterling euphonium feels extremely naturel in blowing, which results in a very nice and great euphonium sound, from the lowest until the highest notes. Flexibility, clearity and blending with other instruments is very good, just as the great tuning of the instrument. I can only agree with what Sterling says themselves about the instrument:
'The Sterling Virtuoso Euphonium is the culmination of many years of development with some of the world's finest euphonium players. This has resulted in a truly outstanding instrument for today's discerning musicians. The traditional euphonium sound, ease of playing in all registers is enhanced by the excellent intonation throughout the entire range.
For more information about this euphonium, have a look on the Sterling Website. The Sterling importer for the BeNeLux is Muremo. You can always contact them about the instruments. Please do not hesitate to contact me if you want a personal view or if you are interested in trying the Sterling Virtuoso Euphonium!