In reply to:

I am talking about regular speakers, not subwoofers.



They're all speakers... the idea is the same.

In reply to:

But I hear that SVS and Hsu subwoofers with 12-inch drivers are excellent. Do you know subs at similar price points with 8-inch drivers that are better?



A single 12" is bigger than a single 10", so it will move more air, and it is cheaper than a dual 8" or 10" setup.

I'm almost tempted to build a cylinder sub like the one I helped a buddy build in high school... but, nah... all I need is another unfinished project.

Bren R.