Anyone here own the Kanstul 80-S F tuba?

[bububassboner]

Hey there,
I used to own one of the prototypes and helped them fix a few things with this horn. This is a small F tuba. For sure one of the smallest ones you can buy. While I did use it in brass quintet and other ensembles I wouldn't want this to be my o it tuba for sure. It's just not a big horn and I wouldn't use it in a concert band.

Message me if you want more info.