I'm sure you're right, but confusion may arise because the 163 and 186 bodies are almost exactly the same size. In fact, they both use the same Cronkhite case. No comparison in playing though - for my money, the Alex is the winner every time.Mark E. Chachich wrote: As for the size comparison, the Aleaxnder 163 is a larger tuba (bore through the valves) then the Miraphone 186.
Best,
Steve Ferguson