Audio / Stereo Rack

@rsf507 Over your head it will remain, no need to make any changes.

The OP has been supplied suggestions prior to my post, that are with a potential cost, that will extend into the multi thousands of $’s as a purchase.

The alternatives proposed for a product that has potential to be equivalent at a lesser cost, or the description of a design with a potential for a much improved function with added costs are now made known.

I am not the first to suggest a Build Your Own approach, and am also aware the OP is looking for something readily available, my links should be able to fulfill this request.

Has not the OP offered their regards for the info made known.  

@rsf507 Over your head it will remain, no need to make any changes

@pindac don't know what you are saying? I've not posted anything in this thread so it must be over YOUR head whatever it is!

@muaythai The Second Rack System in the Links shown, has a selection of spacings that can be created between the Platforms/Shelves. A 25mm Board with the span between the Props as seen,are looking like they will not deflect with the Monoblocks seated upon them.

If you were interested in using this rack type, with a isolation footer under the equipment as well, like the footer seen in the link. Having made a allowance for extra space to incorporate the dimension of the equipment height and footer between platforms will create a improved set up for these types of implements when utilised. More head height within the spacing enables a broader range of choices for footer types to be considered. Hopefully there is a Post height that allows for the option to have the Monoblocks placed lower in the Rack.   

I found improved sound with a solid amp stand. Support and vibration control seems to improve all audio components, although to various extent.

@muaythai I found myself in a similar situation recently. I just got online with Audio Advisor and ordered one of their Pangea racks. Arrived in a flat-pack two days later — honestly. I recommend calling them first. https://www.audioadvisor.com/furniture/audio-racks (not guaranteeing link will work). The racks are made of composite wrapped in some tough vinyl. Look great, and seem strong. Legs are made of steel tubing, powder-coated. Well engineered for what they are. Some assembly required, if you’ve had to put a bicycle together for your child, you should be OK. I think my son and I used a pair of pliers and an adjustable wrench. They have at least three sizes and two types; one type has steel cross-bracing, the other type lacks it. Turntable stand is the most shallow, standard audio rack should accommodate most gear. Their amp stands are absolutely massive and includes the cross-bracing. Problem is, I don’t think you can officially extend the amp stand’s height with additional shelves (but I made a way). And you can order legs of different heights to accommodate equipment of different heights on the shelves of the turntable or standard stands, but not for the ones with cross-bracing. Again, they’re serviceable, quick, cheap (<$500 each), and relatively easy if you’re mechanically inclined. They are not heirloom grade, and I wouldn’t recommend them for damp locations, but I hope you’re not using your equipment in a damp location in the first place.

Sounds like you’ve found a good vendor, this is an alternative.