Jeff,
I know some of your comments are in jest, but, the idea of comparing outrageous apartment systems, with the measure being the inappropriateness of the gear seems to be the wrong approach to making a good actual choice. The best sound is achieved by employing the right gear for the apartment setting. This does not necessarily mean tiny speakers and really low-powered amps.
For example, if you look in Japanese audio magazines, you will see a lot of systems with very large horn-based speakers in tiny apartments. Why? It is because horns can sound extremely vibrant and alive when actually playing at quite low volume--a good attribute in an apartment with thin walls. That horn systems also tend to be very efficient is another great attribute because most of the very best amplifiers (in my opinion) are low-powered amps.
You can also get very dynamic sound at low volume with high efficiency fullrange drivers used either in single-driver fullrange systems or with the full-range driver used in multi-way systems. Most of these types of systems are also quite efficient.
Even large dipole panel speakers might be appropriate in an apartment, if you can get them out into the room. Dipoles tend to concentrate the sound within a narrow field (the back and front wave are out of phase and cancel at the sides) and will sound pretty loud without spilling that loudness throughout the apartment (and into the next apartment).
There are many other ways to achieve good apartment sound, but, large subwoofers and hundreds of watts of power are the least likely way to get there.
I know some of your comments are in jest, but, the idea of comparing outrageous apartment systems, with the measure being the inappropriateness of the gear seems to be the wrong approach to making a good actual choice. The best sound is achieved by employing the right gear for the apartment setting. This does not necessarily mean tiny speakers and really low-powered amps.
For example, if you look in Japanese audio magazines, you will see a lot of systems with very large horn-based speakers in tiny apartments. Why? It is because horns can sound extremely vibrant and alive when actually playing at quite low volume--a good attribute in an apartment with thin walls. That horn systems also tend to be very efficient is another great attribute because most of the very best amplifiers (in my opinion) are low-powered amps.
You can also get very dynamic sound at low volume with high efficiency fullrange drivers used either in single-driver fullrange systems or with the full-range driver used in multi-way systems. Most of these types of systems are also quite efficient.
Even large dipole panel speakers might be appropriate in an apartment, if you can get them out into the room. Dipoles tend to concentrate the sound within a narrow field (the back and front wave are out of phase and cancel at the sides) and will sound pretty loud without spilling that loudness throughout the apartment (and into the next apartment).
There are many other ways to achieve good apartment sound, but, large subwoofers and hundreds of watts of power are the least likely way to get there.