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#334131 - 01/10/11 08:22 PM Any ideas? Sub seems to be lacking....
AndrewSW Offline
buff

Registered: 02/28/06
Posts: 46
Living Room Setup

So I spent lots of money on a couple of Axiom's nicest subs, and the other night I put in the most recent Startrek movie hoping to wow my wife with some awesome sound; however, I couldn't help but feel quite underwhelmed/dissatisfied with the low end.

I'm open to input/ideas. I can see both subs working during the movies (sometimes more than I'm comfortable with), but their output isn't providing much thump effect like I think it should. I know I have a large room size, but movie theaters (which are quite large) provide lots of thump. How do I reproduce that?

The link at the top will give you some pics of my room. Let me know what I can do to make it better.

thanks
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Harman/Kardon DPR-2005 | SVS PB12-ISD | M22s | QS4s | M2s | VP-150

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#334132 - 01/10/11 08:24 PM Re: Any ideas? Sub seems to be lacking.... [Re: AndrewSW]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 18044
Loc: NoVA
Have you run any frequency sweeps to see what areas might be deficient?
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#334133 - 01/10/11 08:26 PM Re: Any ideas? Sub seems to be lacking.... [Re: Ken.C]
AndrewSW Offline
buff

Registered: 02/28/06
Posts: 46
how do I do that?
_________________________
Harman/Kardon DPR-2005 | SVS PB12-ISD | M22s | QS4s | M2s | VP-150

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#334134 - 01/10/11 08:29 PM Re: Any ideas? Sub seems to be lacking.... [Re: AndrewSW]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 18044
Loc: NoVA
Well, I've never done it, because I don't really want to know, but basically you get a sound meter (or download one for your smartphone) and a CD of test tones (many available free for download online), and sit there and write down the loudness at each tone. That way you'll be able to tell if you've got a flat response, or a big dip somewhere, and the like. Then you can take corrective action by either moving the subs, recalibrating in some way, or using a sub equalizer like the one from SVS or Velodyne.
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#334135 - 01/10/11 08:29 PM Re: Any ideas? Sub seems to be lacking.... [Re: Ken.C]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 18044
Loc: NoVA
Another question would be whether there's anywhere in the house that the bass is really loud. I've got a bass null right on top of my couch...
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#334136 - 01/10/11 08:31 PM Re: Any ideas? Sub seems to be lacking.... [Re: Ken.C]
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6789
Loc: The Peoples Republic of Il.

Do the sub crawl.
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"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


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#334144 - 01/10/11 09:31 PM Re: Any ideas? Sub seems to be lacking.... [Re: Wid]
tomtuttle Offline
axiomite

Registered: 06/20/03
Posts: 8488
Loc: Tacoma
Surprising, since you have two subs. Still, it seems like the most likely scenario is a placement issue. Like Ken and Rick said. Get an SPL meter, download some sweeps, walk around the room and see what you see. Hsu used to have test tones posted. Home Theater Shack is a good resource for stuff like that, too.
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#334147 - 01/10/11 09:36 PM Re: Any ideas? Sub seems to be lacking.... [Re: tomtuttle]
BlueJays1 Offline
connoisseur

Registered: 09/19/08
Posts: 4116
Loc: Porch,enjoying Bombay Sapphire
Watch Inception on Blu-ray with your audience.
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I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne

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#334152 - 01/10/11 10:24 PM Re: Any ideas? Sub seems to be lacking.... [Re: BlueJays1]
GregLee Offline
veteran

Registered: 03/12/03
Posts: 144
Loc: Waimanalo, HI
Not wanting to seem crude, but if you want more volume from the subs, try turning up their volumes.
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Greg
VP180, M80s, M22s, QS8(4), CSW S305s, EP500, Pioneer VSX-90
M2i, M3(2), Pio vsx-1020

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#334153 - 01/10/11 10:28 PM Re: Any ideas? Sub seems to be lacking.... [Re: GregLee]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 18044
Loc: NoVA
Also, try using just the EP800 or changing the phase on one of them.
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I am the Doctor, and THIS... is my SPOON!

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