Sealed Subs or Ported Subs (Dual XS15 vs Dual XV15) For my Room? - AVS Forum
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post #1 of 10 Old 02-23-2014, 03:56 PM - Thread Starter
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Hello guys! Long time lurker here that finally got the guts to do his first post. I'll get the straight to the point, I'm split between either getting dual XS-15s or dual XV-15s for my room. Would sealed subs work better in a small room like mine (about 1200 cubic ft)? It says the XS-15 would go down 26hz but would it go lower in room like mine? I mainly watch movies so I like my bass to vibrate the seats but I don't want boomy sound. I had a BIC PL-200 so I feel like I was missing a lot of lower stuff (well at least from what I've read here). Any input would be appreciated smile.gif
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post #2 of 10 Old 02-23-2014, 04:09 PM
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Sealed would prolly work well for you. I would consider a single XS30 too

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post #3 of 10 Old 02-23-2014, 04:09 PM
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Is your room sealed?

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post #4 of 10 Old 02-23-2014, 04:12 PM
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If it is I would opt for dual xs15s personally that way u have more freedoms of movement for freq smoothing

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post #5 of 10 Old 02-23-2014, 04:25 PM
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In general, with comparable subwoofers, with a properly-made vented one, you will get deeper, flatter bass, until it starts dropping off, and then it will drop off faster than a sealed subwoofer will.  You also tend to get higher output before the drop-off.  With these, from looking at the manufacturer's claims, I personally would go with the vented versions.

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post #6 of 10 Old 02-23-2014, 04:38 PM
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With a longest room dimension of about 20 feet sealed is OK, larger than that ported is better.

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post #7 of 10 Old 02-23-2014, 06:35 PM - Thread Starter
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Thank you guys for the input and greeting smile.gif looks like I'm leaning more toward sealed now
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post #8 of 10 Old 02-24-2014, 11:55 AM
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I would get the ported. In the future, you may want to use it in a larger room.
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post #9 of 10 Old 02-25-2014, 07:57 AM
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Quote:
Originally Posted by The Deluxe View Post

Hello guys! Long time lurker here that finally got the guts to do his first post. I'll get the straight to the point, I'm split between either getting dual XS-15s or dual XV-15s for my room. Would sealed subs work better in a small room like mine (about 1200 cubic ft)? It says the XS-15 would go down 26hz but would it go lower in room like mine? I mainly watch movies so I like my bass to vibrate the seats but I don't want boomy sound. I had a BIC PL-200 so I feel like I was missing a lot of lower stuff (well at least from what I've read here). Any input would be appreciated smile.gif

You have to be careful when comparing the +/-3db Frequency Response of a sealed subwoofer. That rating simply tells you how low a sub will go while maintaining a flat response with out any boundry reinforcement. Place that sub in a small sealed room where 12db of room gain can lift the low end, then you have a sub that may reach +/-3db down to 12-14hz.

Ported subs generally follow thier base response because of the steep roll off below the tune. Room gain can still affect them but normally excessive room gain of a ported subwoofer will cause an big Peak in the response between 20-40hz. Also extension may increase slightly but normally never more then 5hz.
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post #10 of 10 Old 02-25-2014, 09:13 AM
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Exactly. The f3 of a Psa xs30 is 23hz (according to tom)

In my room I get extension down to 10hz +\- 2.5.

When I had a xv15 in my room which has 18hz as it's tune. I was getting extension down to only 15hz.

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