I currently have a tuba in F Dillon 399, I am interested in making the change for a Cerveny CFB 661-6gprx tuba, I have had good experience with Cerveny, but I don't know if in this case it is a good option to make this change, any comment to be able to tell me to make the change? https://i.ebayimg ...

I am looking to buy a tuba, I have ruled out in general or Chinese options, but in my search I found a tuba from the brand Weingrill & Nirschl, specifically the 5/4 WNTU1C model, the tubas are manufactured in brazil, I did not find much information about this brand, does anyone know the brand? https ...