Salamander Cabinet Resonance Problem. Help

I have the Twin 40 with the mesh side panels and mesh doors. The mesh side panels don't resonate at all (they include the rubber edging). I have a lot of gear inside it including a 100 lb. amp which may be dampening the vibrations. I have it on wheels so I can move it out. The rubber in the wheels may help too. I'd like to add some additional isolation under my DAC and transport, but the transport is a top loader and requires lots of headroom so I don't think I have room for it. Mapleshade said they could build custom maple shelves to fit the Salamander rack. I may revisit that idea someday.

I have the mesh side panels to dissipate heat from the amp. I needed something to keep the dog's tennis balls out and eventually we'll have kids too. I don't have locks on the doors yet, but plan to do that. It's been a great rack. Looks great and it's easy to change the shelves. One of the door hinges came loose and Salamander shipped one 2nd day air no questions asked. We have it in our living room and it doesn't look like an audio rack.

I don't think that my mesh side panels are wrapped in rubber like some of yours. I have a lot of wiggle room between the mesh and the Aluminum rails. They just bang around. They are free to move left, right, up, down, and in and out. I don't think that the rubber does anything to stop movement on my unit. Is the rubber attached to the side panels or does it come separately?

I too have a new baby that is just learning the crawl at an alarming rate. I bought the cabinet prior to the baby, but I'm glad to have the extra protection. Thanks for the help.

Sorry to tell you, but I made a Salamander 40 knock-off for a 1/4 of the price that salamander charges.

Frame World, 80/20 are just 2 companies that sell the hardware that is exactly what the frame stiles are made of.(as well as any thing you could imagine building with the stuff)
Rather than the 3/4" selves, I used 2"x18"x20" maple cutting boards "cut down" for shelves and had the top/bottom custom made of 3" maple so the shelves are recessed as the Salamanders are. The mesh can be had had numerous places(mcmaster carr).
I put a Rubber snubber tween each shelve and "mesh" to deaden the "rattle", I would try "Home- Lowes" for a rubber snubbers to place between each shelve and the mesh

imagination is endless, j

I have a Twin 40 and purposefully ordered it without any doors, sides, or back panels, which I knew would just resonate. Next I am replacing all the corner shelf supports with the heavy-duty bracket-type supports to strengthen the overall structure by adding crossmembers. I got this rack for its appearance, adjustability, capacity, accessability, and mobility (including the Saturn wheels), not for its rigidity or inertness, which are always going to be just so-so.