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I want new bass. Currently I'm using a DIY Bill Fitzmaurice Tuba HT.
I have been battling between a pair of SVS PC-2000's and a single HSU VTF15h Mk2. (with a hopeful upgrade to dual. I Finally decided to do the Hsu and then saw something about the Dayton 18" ultimax in a sealed box. I could do two of those powered by a Behringer EP4000 for the same price as on HSU. Now I don't know what to do.

Like everyone else I want bottomless bass at high volumes and it needs to be super clean and tight.
The room is sealed 21' 6" front to back, 16' side to side with an 8' suspended ceiling.

Current system7.1.4 Yamaha 3050 for processing, Polk SDA SRS 2.3 for mains, nice Klipsch center, Klipsch surrounds and rears all bookshelfs, Yamaha 8" x 4 overhead, and the afore mentioned folded horn sub. Power is all Adcom GFA-555II's across the front and Adcom 100w per channel over head, the yammy running all 4 surrounds. 100" screen up font and my fat self sits 8 or nine feet from the screen. Mostly movies. I have a miniDSP2x4 HD and REW but haven't used them yet.



Question is, HSU VTF 15 x 1 (possibly 2 down the road) or Dayton 18 in the sealed box x2? I'm a little worried that the Dayton sealed will only move air at high volumes. Normal listening will be without bass. Also worried that 2 may kill me at high volumes. I can see the headline now "Fat guy found dead in basement with popcorn in hand"
 

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Question is, HSU VTF 15 x 1 (possibly 2 down the road) or Dayton 18 in the sealed box x2? I'm a little worried that the Dayton sealed will only move air at high volumes. Normal listening will be without bass.
What leads you to believe the Daytons won't have any bass at moderate listening levels? Was it posted by an owner or something?
 

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Question is, HSU VTF 15 x 1 (possibly 2 down the road) or Dayton 18 in the sealed box x2? I'm a little worried that the Dayton sealed will only move air at high volumes. Normal listening will be without bass. Also worried that 2 may kill me at high volumes. I can see the headline now "Fat guy found dead in basement with popcorn in hand"
"how much air is moving" is irrelevant, and will not impact bass at low volumes. If you want bass at low volumes you need something like Audyssey or Dolby dynamic EQ on your AVR. WHat kind of subs you have don't matter.

You'll get better bang for the buck with the two sealed Ultimax than one Hsu.
 

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takes so much power to get 18" moving?
That's a misconception really. A lot of a drivers response is tied to things like MMS, efficiency, the cabinet alignment, etc. There are 21" PA drivers that respond faster then a 12" HT subwoofer. It's all in the engineering.
 
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