can you tune a k5la? some of them dont sound right blowing them one at a time

can a k5la be tuned

Some K horns could be tuned using tunable backcaps but there were only a few of them made(only from Canada I believe).

If you have one that isn’t sounding the right key, it probably needs to be sent to a machinist for some work. I know of two great guys who can tune an individual bell on ANY kind of horn to its intended factory specs. Send me a private message if you need either of their contact info.