What I find interesting is that Sinfonico appears to sport the same 15.0mm - 17.0mm bore size as the new Shire Q40 and Q41, as well as the Hirsbrunner 479...
I found no other euphoniums this far with this large 17mm bore on the 4th valve, and a difference of 2mm between valves 1-2-3 and valve 4.
Alexis at Shires suggested that the adoption of the large 17.00mm bore on the Shires Q-series euphoniums is expected to yield greater support to the player in the lower range.
Not having heard any good examples of Sinfonico nor Hirsbrunner clips yet, I am never the less wondering if there may be a common thread amongst the tonal characteristics of all these horns.
TO the best of my knowledge, BNarcisi might be one of the few who until recently owned Sinfonico, and still owns Hirsbrunner 479, and Shires Q40.... Perhaps he can comment on my conjecture, or happily tell me that, well... I'm out to lunch *Grins!*
Saluti, G.
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