Is it possible to combine KF760 with KF730 in the same PA tower or array?

Yes, you can fly the KF730 under the KF760. You will need an adapter bar to do so.

You may also use the KF730 as outfills in the same system, though if possible it’s best to use all KF760/KF730 as there will be performance variations between the two as they use different drivers.