The new Perantucci PT606P?

[Cameron Gates]

I have never had that problem (g's) with mine. The G on the bottom of the staff tends to ride a little low, but not enough to cause a problem. The upper G is standard issue high. Pretty much every horn I have played has that problem. There ain't no big whoop about it, that's just the way it is with tubas in general. Learn to correct it automatically and one will never have a problem. If I had perfect intonation as a "must" for a new instrument, I would still be without one. I simply looked for a great sounding and feeling instrument that COULD be played in tune with minimal effort. Search over.