Wow nice subject, sound verse weight. Being older then most I would like to take a different view of this subject. If I were not carry the equipment
I would want the best of the best sound I could get. I carried a Fender twin guitar amp with special speakers well over 50 lbs. and a PA system with tall columns and helped with a large Leslie speaker. But ---- there is always a price!

We are not all built the same, for those who are well built with a strong body, great, but for those who struggle with the weight there will be a price to pay. Here in Florida there are many older musicians who will testify to that. When asked if they would do it the same way almost all say no.

I feel the question of weight verses sound should include all factors health or future health should be considered.

IMHO, John C.