Both lines of saxophones are made in Taiwan.  Cannonballs are designed in the US.

A long time ago, instruments from Japan did not play very well, but they have greatly improved.  So much that both Yamaha and Yanigasawa are two of the four major players in the saxophone manufacturing realm.

Like Cannonball and P. Mauriat, Jupiters are made in Taiwan as well and have gotten a lot better.  I have a Jupiter alto that sounds decent.

The brand names Cannonball and P. Mauriat are purely for marketing purposes.

Cannonball Adderley did not play any role in the Cannonball company.

And P. Mauriat was a French musician who did not play saxophone.

Several people have told me that they liked Cannonballs and P. Mauriats.  So try one out and see if you like it.