The 20.7 is not big.
What? You say.
The 20.7 is not big from an acoustical standpoint. However, the bass driver is big. If we sold the portion of the speaker from 200 Hz up, you could put it in the average apartment. Yes, it is tall, but very narrow. The ideal speaker would be a massless line-source that would look like a pole–from the floor to the ceiling. The 20.7 comes as close to that ideal as is possible with real-world devices.
The 20.7 bass driver is the reason it is big. Sorry, but that is what it takes to have high definition bass.
The Florida customer with the system below wrote—
“Listening to the 20.7s in my room for the first time was a “wow” moment that raised goosebumps. There was no directionality to the wall of sound that these speakers create. But, more notable to me was that the immediacy that made the experience seem live.”