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 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.