Danny Richie on loudspeaker design.

{When correctly assembled, the sub is like no other you’ve ever heard! Lean, no fat what-so-ever. Makes "normal" subs sound "plump". ;-) } a normal sub is a highly compromised design so anything is better. But bass horns or large driver-ported boxes all are the better option in my experience.

Had a friend send me the dipole bass system and networks etc he couldn't get them to function properly and they were terrible I had to rework all was a few years ago maybe he's gotten better. Best to get info from many sources. Following an audio guru is usually not the best way. Learn enough to understand audio design then you can see that some audio gurus are fairly off base. With all things, YMMV and Danny's business is biased toward his own products like all businesses can't fault the guy for that.