I’ve owned a Salamander Archetype rack they are pretty flexy it may hold 150lbs but I would personally be leery of putting a 105lb amp on the top shelf. The other rack might be a better idea.
Also if the rack you’re using is open architecture you should be fine putting the amp on the bottom if it has at least 6 inches clearance on the top.
Also to get the amp on the bottom shelf put it right in front of the rack lift the back of the amp onto the shelf then grab it by the front and carefully slide it onto the shelf.
Also if the rack you’re using is open architecture you should be fine putting the amp on the bottom if it has at least 6 inches clearance on the top.
Also to get the amp on the bottom shelf put it right in front of the rack lift the back of the amp onto the shelf then grab it by the front and carefully slide it onto the shelf.