Comments on Profile Post by Hrodulf

Most people who owns 18" probably not scared to turn it up.

Forget 18''. No one would be fooled even at that low level playing some well recorded double bass between an 8'' and a 12'', both given optimal conditions.
Bigger woofers have meat, air and flow of energy that the smaller ones just lack.

I had a pair of dual-opposed 15" subs in my last apartment. They could rattle the glasses in the cabinets of the apt. across the hall. At half gain.

I use two 10" subs in nearfield and i want moar.

Surely the cabinet design is a big contributor here too

Two questions for y'all: Do you feel the way about headphones? Does your desire for dynamics depend on the genre of music? Gratias.

I am not in this statistic. Maybe take a poll on here. "Does a properly amplified system with big ass woofers move air?" Hopefully the physics nerds here can give you a great answer to these "lot of complainers"

I’m inclined to agree, even with HP’s. After years of believing HiFi was partially about satisfaction/“resolution” at lower volumes, I find myself cranking it more these days. My old beliefs about shoutiness or fuzziness at high volumes don’t seem to apply now. Also dealing with aging ears here, though.

Nerd physics wise the mechanism has been described to death everywhere; and still some people are not sold. You d-o n-o-t want your drivers visually physically move - when the do, there are dozen mechanisms producing distortion at significant levels. There are heroic attempts, like Purifi. The do punch above their weight, but a heroic 6'' woofer is still inferior to 'good' 10'' woofer for bass.

Lame car analogy to follow: You have a track car without limitations. Would you rather have a 1.6 L R4 engine boosted to squeeze it's tits off at 400 kW, or would you rather have a 5 L flatplane V8 outputting the same number?

@Priidik I think Purifi did a good job explaining that at high excursion you get less effective piston area due to surround flex.

That is one thing. Then there are the spring (compliance) factors of surround and spider. Compliance is only neglected to be linear - it really is not. Then there are excursion dependant mechanical losses. We haven't even touched on motor stuff. A dynamic driver really is as complex as a woman. Purifi has nailed all of these drawbacks to a great extent; and it shows both listening and measuring.