I too have a CB mobile hidden the library closet, somewhere...
After having a "stack" of audio/stereo components (amp, receiver, tuner, turntable, cassette deck, VHS, etc.) I now just have a Vizio 5.1 soundbar with a wireless subwoofer behind the sofas and a couple of tiny speakers in the back corners of the room to round out the 5.1.
Now at my age, I'm not doing max volume of Led Zeppelin, Pink Floyd, Neil Young, and the other greats.
Heck, not even sure my hearing is good enough now to even pick up and appreciate the extreme high's and low's anyways. But I do get really good 'fly-over's' in some movies or will hear a door open/shut (or whatever) over my shoulder that'll make me turn my head to look.
And it all takes up a whole lot less room!
As Alice continues down this rabbit hole just a wee bit more, it's amazing how much more compact audio and video components have become, but with considerably better sound and display! Remember when TV's where about 2 feet deep and speakers were anywhere from 2' to 3' high and a foot deep? And what about the stereo and TV consoles of the 60's and 70's that were beautiful pieces of furniture that were about 5 or 6 feet long!
With the size of newer audio/video, I've reclaimed many cubic feet of lost floor space in my living room. Our biggest concern now is having enough wall space for bigger TV's!