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S.I. HST18 upgrade ????

532 views 7 replies 6 participants last post by  paul20043 
#1 ·
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.
 
#3 ·
I have someone that can build the boxes.....How big would i need to go for these woofers ? Show me some kinda example please.
 
#8 ·
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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