Actually, the 9H has four woofers, opposed (literally) to two in the 7F. It also has completely room corrected bass, a sealed cabinet whereas the 7F is ported, and is dramatically easier to drive. It also plays lower due to the DSP the amp is able to employ on the bass.
As good as the 7F are, the 9H is a dramatic improvement and a steal for even the $10k retail difference. In fact, not only is the 9H not “like having subs,” it’s even less like having subs than most speakers are because the ARC will make the bass response in room far better than most if not all other speakers available (7F included obviously).