With out being able to search this plethora of info call TubeNet, I now must annoy everyone with the (probably numerously asked before) question of B&S F tuba comparisons. I'll keep it simple...
PT10 - PT15 - JBL (rotor versions only)
What are the main differences between them and why is the JBL so special, ignoring the fact that it is especially for JBL.
Thanks for your help
