3/4

[Lew]

It is a scale that some mannufacturers use/have used to differentiate sizes of tubas. In particular Rudolph Meinl uses these designations for their tubas. 4/4 would be full sized, while 3/4 is smaller, 5/4 is larger, etc. There is no consistent meaning for these terms across different makers, but for Rudolph Meinl the bell size, main tubing diameter, and overall height/size of the horn increase as the numbers increase.

[Lee Stofer]

Yes, this is a take-off from the fractional sizes used by stringed instrument makers, although the size of tubas is not nearly as standardized as stringed instruments.

The standard string bass today is a 3/4, but a standard tuba is a 4/4, and a Rudolf Meinl 3/4 tuba is nearly as large as other manufacturer's 4/4 tubas, and has a larger bore than one instrument maker's 5/4 tuba. there is one maufacturer who has marketed a 7/4 tuba, which is smaller than Rudolf Meinl's 6/4 tuba, which is the largest production tuba on earth - how's that for confusion ?!!

[TubaRay]

I'm 3/4 confused!

[Lew]

So, mine kalison ds cc tuba=???????4 or wat

4/4 In my opinion (and according to Kalison). It's interesting how they consider their DS F tuba to be 3/4, when based on the dimensions I would consider that a 4/4 size for a F tuba.

http://www.kalison.com/it/prodotti/index.htm

[TubaRay]

Then there is always "Twenty-five or six 2/4."

Omigosh!