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Placing a sub in an empty room that will eventually be finished?

post #1 of 5
Thread Starter 
So I have a good sized space in a basement (~15'x21'x9') that I'm planning on turning into an entertainment area. Right now the room is pretty much empty with no carpeting and no seats, but it is finished. It does have some furniture in it, but most of it won't stay. I would like to run a subwoofer cable (or two) now before we get carpet and paint. So what would be the best way to go about this?

Will a sub in an optimal spot in this non-finished area translate to an optimal spot once it is finished?

Would an older Onkyo HTIB sub end up in the same position of the room as a better quality sub? I don't know what my budget will be for a sub just yet, so if I could use my Onkyo sub to find out where to place the outlet that would be awesome.

What about placing a second outlet for a second sub?

Also I think I want to play around with REW. I have a radioshack analog spl meter, but I don't have a cable to hook it up to my computer. What cable do I get to hook it up into either an Audigy 2 or Asus P5Q Pro with a Realtek ALC1200 sound chip? Do either of those even work with REW?
post #2 of 5
In regard to optimal placement, you should be able to at least get a feel for the right spot in the unfinished space because of the strength of longer low frequencies. Now if you were talking about the speakers, that would be a different story since they produce sound that is more easily impacted by the walls, carpeting, seats, etc.; one of the reasons it’s much easier to treat and control those higher frequencies.
post #3 of 5
Thread Starter 
Just wondering about sub placement, thanks. If I understand correctly I'll be able to get a good idea of the best placement for the sub in the unfinished room? And using a different sub then what I end up with to test the room won't make a difference? This is awesome if my understanding is correct. Thanks for the reply Carlo.
post #4 of 5
Some individuals have upgraded to better subwoofers and discovered that the optimal location (by doing the sub crawl) for the original sub was not the optimal location for the new sub.

When I purchased a second sub for my HT room, I regretted not having run a second in-wall line for the extra sub.

Good starting positions for two subs are the two front corners of the room.
post #5 of 5
Everything wwinkler said is on the mark.

Testing with one sub and then implementing another based off the first’s performance isn’t quite apples and oranges, but it is like comparing a Red Delicious apple to a Granny Smith apple – close, but not quite the same! There are a lot of variables in place between any two different woofers so it’s hard to say in all certainty how one will sound compared to another. With that said, you’re still better off finding a “sweet spot” in general terms and going from there, with the front corners being a good spot to start, as stated.
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