I feel Dennis L. Almond is right on with his opinion. My kn7 falls into -- I love it less evrytime I carry it to a new gig.
It is not just the weight bt the shape, it's uncomfortable to carry, an amplifier of the same weight is not a problem.
If I were 6'3" and 220 pounds, it would not be a problem.

WE should not leave out the weight may be needed for protection. The case on my Kn7 is much stronger than the Tyros 2. Bebop once dropped his Kn7 in his motor home and was surprised to find no damage.

Having said that, I can't wait until I order my Tyros2.

Just my opioino, John C.