How to physically move large heavy 100lb amplifiers easily (up and downstairs)

"Why wouldn't they show the guy with the boxes try to use it going up the stairs with the boxes? (even if the boxes are empty)."

If the boxes are empty, they may fall, if they are full he may not be able to pull the cart up?

"A keg is a lot bigger and heavier than an amp, and we were able to carry one cross-country with two people just about any distance over just about any terrain."

After a long head-scratching period, one has to admit there are bragging rights in the disclosure above.

Longer this thread goes, with all good suggestions, more correct geoffkait seems to have been. (Sell the amp, buy a Discman.)

https://www.collegehunkshaulingjunk.com/labor/

(no matter what they charge, it is worth it)