Theyre nice subs. I’ve done at least a dozen enclosures for these for other people, but never ran them myself. I personally liked the sound of them sealed over ported with the limited listening experience I’ve actually had. Normally people will pick up their box, and I get to hear maybe a song or 2 before sending them on their way, so I have far more experience on paper than actually listening to how they perform daily. From the software modeling Ive done, they look a little peaky on the low end in a normal tuned ported box, but some people actually like that. The lowest port tuning I’ve tried with them was 30 hz, and they sounded decent.