It's not the rack that's the problem, it's the fans. Most industrial gear requires a ton of airflow and the noise is something like having a model jet engine sitting in your closet. This from someone who actually did go for it and later recanted.
None of this uses a lot of power or makes a bunch of heat. The receiver tops out at 140W total RMS over seven channels and the VSSL is about 20 per channel. The rack adds an additional 75mm to each side of the rack and 120mm to the front and back. It takes up a lot of room in its closet and I’d be happier with more space to move around it.
LACKs are a bit too flimsy and small for the setup I want to replace. The parent’s shelving unit example looks like a great replacement, especially since I want to store things in that closet on shelves anyway.
My eventual solution was to put the machines under the sink in the bathroom and run a cables through the wall to the bedroom :)
The worst offenders were the 1U units, such as routers and switches, and a bunch of Supermicro 1U servers.