Is this Sub enough for 11x15' Room - AVS Forum
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post #1 of 40 Old 09-10-2013, 06:02 PM - Thread Starter
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I am trying to set up a room for 5.1 surround. The room is massive, but the 'listening/watching area' is 15'x11'. I have access to this sub, but really I could get any of them in that brand within reason.

http://www.episodespeakers.com/product/90/Episode-200-Watt,-10-in.-Ported,-Powered-Subwoofer-(Matte-Black)

Is this 'enough' or a proper size for the room? Is it too much?
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post #2 of 40 Old 09-10-2013, 07:17 PM
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Quote:
Originally Posted by brazosdog02 View Post

I am trying to set up a room for 5.1 surround. The room is massive, but the 'listening/watching area' is 15'x11'.
The size of the listening area is pertinent with respect to the mains, but not the subs. Their capacity is mandated by the size of the entire room, and if it's much more than 15x11 you'll need at least two, and probably larger than ten inch.

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post #3 of 40 Old 09-10-2013, 07:30 PM - Thread Starter
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Hmmm.....OK...pardon my ignorance. I don't understand that. Its larger than the one that was recommended. Since the 'rest' of the room is pretty much like 40x40, I don't understand how that is relevant when you are sitting in a specific location (inside the 15x11 area) watching a movie. Please educate me. This is NOT a theater room...more of a media area.
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post #4 of 40 Old 09-10-2013, 07:52 PM
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Quote:
Originally Posted by brazosdog02 View Post

Since the 'rest' of the room is pretty much like 40x40, I don't understand how that is relevant when you are sitting in a specific location
Because subwoofers operate by pressurizing the room. The larger the room the larger a pump (that's in effect what a subwoofer is) it takes to create that pressure. Mains and surrounds don't pressurize the room, so all that matters with those is the distance to the listening position.
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This is NOT a theater room...more of a media area.
if it's not being used for HT then a 5.1 might not be the best option. Simple stereo with L/R floor standers might be better.

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post #5 of 40 Old 09-10-2013, 08:32 PM
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The larger the room the larger a pump (that's in effect what a subwoofer is) it takes to create that pressure.

OP think of it like the heart of an elephant and the same of a cat. The larger elephant structure requires a bigger heart to pump the blood in the entire body. Tiny heart, OTH, for a cat as it has a small structure.

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post #6 of 40 Old 09-11-2013, 02:44 AM
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Quote:
Originally Posted by braveheart123 View Post

OP think of it like the heart of an elephant and the same of a cat. The larger elephant structure requires a bigger heart to pump the blood in the entire body. Tiny heart, OTH, for a cat as it has a small structure.
The fun comes when you transplant an elephant heart into a cat, then? tongue.gifbiggrin.gif
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post #7 of 40 Old 09-11-2013, 04:00 AM
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The fun comes when you transplant an elephant heart into a cat, then?

It's like mating 4 JTR OS with 80dB sensivity mains. smile.gif

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post #8 of 40 Old 09-11-2013, 04:29 AM - Thread Starter
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I definately want surround. It's a media/home theatre area with a 65" TV. It's been wired for it specifically. I guess I need to do more research because a couple of installers have designed the system and all call for an 8 or 10" sub. Really shocked to hear it needs two. I'm going to have to get my learn on because it looks like installers are going to be like all my other remodel trades.......requiring my supervision, guidance and knowledge of their job. /sigh
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post #9 of 40 Old 09-11-2013, 05:02 AM
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what is your budget for sub?

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post #10 of 40 Old 09-11-2013, 05:21 AM
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Quote:
Originally Posted by brazosdog02 View Post

I definately want surround. It's a media/home theatre area with a 65" TV. It's been wired for it specifically. I guess I need to do more research because a couple of installers have designed the system and all call for an 8 or 10" sub. Really shocked to hear it needs two.
Beware of 'professional' installers. To make that claim they don't really have to know what they're doing, they have to know just enough more than you do so that you might think that they know what they're doing. At least in your case they're underselling you, but in the long run money wasted buying a system that's inadequate for your needs is still money wasted. With the room size you have I'd be using no less than two twelve inch subs, if not two fifteens. True HT junkies would probably use two to four eighteens. eek.gif
As for your installers, look elsewhere or do the research and system install yourself. The ones you've talked with are trying to sell you a half-ton pickup to carry a two ton load.

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post #11 of 40 Old 09-11-2013, 06:12 AM - Thread Starter
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I asked in another thread already but my budget for all audio including receiver that is wifi capable and has ability to stream iPod music via AirPlay is 2500. 5.1 setup. I have 14g wire already installed. I suspect that much of design is simply matter of opinion, like local code requirements, there are some things that are required and needed, but how its done beyond that is just preference. To me, a single 15" sub seems a bit big. 2 - 4 of those sounds like buying a tank to go bird hunting. I am not an 'audiophile', I just want a decent, solid setup. Now, thats what I told my installers so...maybe thats what they are focusing on.
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post #12 of 40 Old 09-11-2013, 06:44 AM
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SVS PB12-NSD @ $769 will do great in your room considering your budget. A pair will be ideal though, but one will still get things going. You can buy one later if budget allows. Build your system around it with the remaining budget.

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post #13 of 40 Old 09-11-2013, 09:42 AM
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a 40' x 40' room? Figuring a normal 8 foot ceiling, that's over 12,000^3 ft. eek.gif

Whatever sub you get I hope you can place it right next to or right behind your main listening position. Otherwise it's just going to get swallowed up by that amount of volume.

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post #14 of 40 Old 09-11-2013, 10:04 AM - Thread Starter
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More like a 30x30, but there is a hallway on top of that even.
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post #15 of 40 Old 09-11-2013, 10:20 AM
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oops.....I missed the 40'x40'

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post #16 of 40 Old 09-11-2013, 10:36 AM
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30x30x8 = 7200 cu ft

Going from Boss's calculations for a setup required to reach Reference level all the way down to single digit Hz with a Sealed setup:
http://www.avsforum.com/t/1477487/if-you-needed-4-hz-in-room-but-could-pick-the-room-how-would-you#post_23586323
you'd need 7200x0.01litres = 72 litres of displacement minimum, with 5watts x 7200 of power = 36000w of power (peak)

If 2000 cu ft requires four SI18 drivers, you'd need 14 18" SI drivers (probably 16 in reality, to enable easier 2/4/8 Ohm loads) and some considerable ampification for them... biggrin.gif
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post #17 of 40 Old 09-11-2013, 10:38 AM - Thread Starter
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Yeah...ain't happening. Its going to have to make do with a single 12". We don't need to shake the bricks off. :P
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post #18 of 40 Old 09-11-2013, 10:50 AM
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You've been given some really good advice above. I'm in a 23' x 13' enclosed space and I've only got one 12" at the moment. I'm not a basshead by any means. However, there's no way you'll get any level of satisfaction unless you get at least one 12" sub and probably two. If I were in your position, I'd probably put 2 15" subs in there.
I helped a friend with his new theater room last month. He allowed me to purchase components for him. We put two 12" subs in his space, when he was not originally considering even one. In his own time he's experimented listening with and without the subs on. He loves the subs. He said they are his favorite part of the system. His space is less than half of yours.
Save up and get some subs. You'll thank the forum members!

Cheers,

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post #19 of 40 Old 09-11-2013, 10:58 AM - Thread Starter
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I'm going to start with a single 12 or 15. I can always add later if its inadequate. The advice here is well received so that's the route ill go.
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post #20 of 40 Old 09-11-2013, 11:00 AM
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Keep it near-field and you may get away with just one sub

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post #21 of 40 Old 09-11-2013, 11:23 AM - Thread Starter
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near-field....meaning?
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post #22 of 40 Old 09-11-2013, 11:25 AM
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right behind your seating area or onto left or right as a side table

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post #23 of 40 Old 09-11-2013, 12:20 PM
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Quote:
Originally Posted by braveheart123 View Post

Keep it near-field and you may get away with just one sub
The benefits of near field placement of subs are greatly overstated, especially if so doing results in bad placement with respect to room modes. Blame it on Schroeder and his frequency.

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post #24 of 40 Old 09-11-2013, 02:08 PM
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Quote:
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The benefits of near field placement of subs are greatly overstated, especially if so doing results in bad placement with respect to room modes. Blame it on Schroeder and his frequency.

Yep. As long as it doesn't put the sub in a really bad place it's worth a try though if it can be done with your space.

For the OP maybe start off with one Rythmik FV15HP and see how it sounds.

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post #25 of 40 Old 09-11-2013, 07:29 PM
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OP, how far is the rear wall from the seating area?

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post #26 of 40 Old 09-12-2013, 06:46 AM - Thread Starter
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Rear wall is 25-30 feet behind the sofa. The sub would be located within 10 feet of the seating area in the front corner.
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post #27 of 40 Old 09-12-2013, 07:16 AM
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Quote:
Originally Posted by Bill Fitzmaurice View Post

The benefits of near field placement of subs are greatly overstated, especially if so doing results in bad placement with respect to room modes. Blame it on Schroeder and his frequency.

i agree. bad location is bad location. being nearfield cannot make up for that.

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post #28 of 40 Old 09-12-2013, 07:24 AM - Thread Starter
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Can you guys recommended a good 15" sub in the 600 ballpark? If not, im planning on going with the Episode 12" sub, it has great reviews, is well priced, and seems to compete with more expensive, larger subs so far as I can tell from reviews.
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post #29 of 40 Old 09-12-2013, 07:28 AM
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why does it have to be 15"? That sub is a 12" anyway

the best sub at $600 is the Rythmik Audio LV12R. for $700 i like the SVS PC12-NSD. $800 the Power Sound Audio XV15...............
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post #30 of 40 Old 09-12-2013, 07:36 AM
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You might look at the Premier Acoustics PA-150. It's not the greatest deep bass sub, but it has a lot of mid and upper bass output. It's the only sub within your budget that has a chance of being heard in that room.
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