Okay right now i have duel S.I. HT D4 in 4 cu ft boxes from DIY group. I'm trying to figure which box will i get the most out these monsters. Do i add these into my seal boxes or Have duel ported boxes built ? Inuke6kdsp will be powering them & room size 15x35 open area.
Nexgen76,
Sorry Off topic, Since you are upgrading, do you plan on selling your to be decommissioned SI18 sealed enclosures? if yes, i sent you a PM with my contact details.
I too would be interested in purchasing your ht 18s. If you are somewhere near south Dakota.
As for your boxes they would be perfect size to moderately oversized for a sealed hst 18. It has a lot lower vas, so it will work in an even smaller box. I prefer my sealed subs' q to come out to around 6 or under. Sealed = Less work and a lot smaller foot print than going ported. Ported would require something like a 12 cu ft box for the hst.
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