From
www.custommusiccorp.com
Specifications:
6/4 size 'CC' tuba
.787" bore for valves 1, 2, & 3, .820" 4th valve bore, .860" 5th valve
19 1/2" bell
5 valves in your choice of all rotary or 4 piston and 1 rotary
"Big Valve" group (extra wide piston) on PT-7P Piston Model
open wrap valve slides for reduced resistance to air flow
adjustable thumb ring for increased comfort
Tuba World introduces its newest model, a large 6/4 Size "CC" tuba. Taken from classic German and American designs and available in either gold lacquer or silver plated finish, the new Perantucci PT-7 embodies maximum sound production and strength with grace and versatility. It truly qualifies as the ultimate tuba needed for todays orchestra or band performer.
The "New Sound" of the PT-7P combines the bite of the German tubas with the unique qualities of the large, dark, and powerful sound of the old Yorks that are now legend. The PT-7's sound is similar to but more amplified than the PT-6, our very successful orchestral tuba being used by Floyd Cooley, Sam Pilafian and other leading professionals.
The PT-7P piston model is made with extra wide diameter piston valves set which allows for more fundamental in the overall sound, a definite must in large ensemble orchestral and band playing.
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This is a BAT. I would say that a PT-6 would be more than enough tuba for almost any ensemble. What type of ensemble are you playing in that would require such a large tuba?
TMB