This is topic Elevating my sub? in forum The Afterlife at Film-Tech Forum ARCHIVE.


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Posted by Tom Petrov (Member # 1534) on 02-26-2011, 10:13 PM:
 
Ok, questions for all the experts on here.

My TV and speakers sit about 4.5 to 5 feet off the ground.

I want to elevate my subwoofer about half way or more.

Is there pros? Cons? Pointless? Good idea? Inventive
 

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Posted by Mike Blakesley (Member # 26) on 02-26-2011, 11:16 PM:
 
Your sub should sit on the floor if possible. I think you would notice a decrease in bass if you lift it off the floor.

If you want even more bass than you're getting now, put the sub on the floor in a corner.
 

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Posted by Ron Lacheur (Member # 1126) on 02-26-2011, 11:32 PM:
 
The only reason to lift it is to please your neighbours in a condo building.
 

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Posted by Joe Redifer (Member # 3) on 02-27-2011, 02:08 AM:
 
Just get more subs.
 

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Posted by Frank Angel (Member # 248) on 02-27-2011, 05:21 AM:
 
Tom, if you are thinking it will improve bottom end? Just the opposite, as Mike said. Floor is better, corner postion is even better than that. Lots more of them is the best of all, as Joe said. My axiom about subs -- there is no such thing as too many subs.

Now if this is a "neighbor" issue, then invoke the Golden Rule of Apartment Dwelling: "Hey, bub, you pay rent for your apartment....you do what you want in your apartment; I pay rent for my apartment.... I do what I want in my apartment."
 

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Posted by Louis Bornwasser (Member # 3063) on 02-27-2011, 07:21 AM:
 
"Make her sit on the floor!" Louis
 

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Posted by Scott Jentsch (Member # 1681) on 03-01-2011, 11:44 AM:
 
Your sub was designed to sit on the floor at the distance its built-in feet allow, so I think you're good on that front.

Like the others have said, placing a sub near a corner will reinforce its frequencies, but possibly at the risk of boominess. The good thing is that experimentation is easy.

The type of floor you have the sub on will also impact how much sound it will transmit. I think the ideal situation would be a stiff hardwood floor built on floor joists, which would allow the floor to reinforce the bass in a pleasing way. However, that introduces quite a few variables, and sound engineers don't like unknown variables.

Some people with dedicated home theaters in basements with concrete floors have built raised subfloors, specifically to get rid of the sound deadening that can come from the concrete material. The problem with that is then the floor becomes part of the device, so unless you do it just right, the results may not be what you want.

Probably the best increase in sound quality can come from adding a second subwoofer. You'll be moving more air, plus you'll have two sources, which will even out some of the room issues that may be playing with the sub's frequencies.

One suggestion I've heard works in respect to sub placement is to place the sub in the room where you will be sitting, and then move around the room with your head near the floor until you find the position were the sub sounds the best. Now place the sub there, and you have your sweet spot.
 

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Posted by Mike Blakesley (Member # 26) on 03-03-2011, 10:51 AM:
 

quote: Scott Jentsch

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place the sub in the room where you will be sitting, and then move around the room with your head near the floor until you find the position were the sub sounds the best.

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