Bass traps or EQ - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #11 of 79 Old 01-19-07, 09:42 AM
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Lightbulb Re: Bass traps or EQ

Fred,

> Is this big enough to have some effect in the bass range? <

Some effect? Sure.

> Is there anything I should do different? <

Make them bigger?

--Ethan

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post #12 of 79 Old 01-19-07, 09:45 AM
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Lightbulb Re: Bass traps or EQ

Wayne,

> So - take that! <

I love that smiley!

BTW, below is a large size version of the ROFL guy. Use it as you see fit.

--Ethan


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post #13 of 79 Old 01-19-07, 09:59 AM
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Re: Bass traps or EQ

Yeah, that’s a great one! I’ve got it book marked now – probably the only smiley face I’ve ever book marked!

Regards,
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post #14 of 79 Old 01-19-07, 05:00 PM Thread Starter
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Re: Bass traps or EQ

Quote:
Ethan Winer wrote: View Post
Fred,

> Is this big enough to have some effect in the bass range? <

Some effect? Sure.

> Is there anything I should do different? <

Make them bigger?

--Ethan
Well I guessed someone would recommend making them bigger but WAF and placement issues limit me to that size.As long as they will have some benefit I will go ahead and build the first pair this weekend and give them a try.

Thanks Ethan.
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post #15 of 79 Old 01-19-07, 07:19 PM Thread Starter
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Re: Bass traps or EQ

Ok I was able to quickly slap together 2 frames tonight .I will purchase some mineral wool tomorow.
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post #16 of 79 Old 01-19-07, 09:47 PM
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Re: Bass traps or EQ

The frames look great.

I have a thought for you...

often we try and cram an acoustical solution on top of an existing room, instead of trying to design it into the room...

If you look at many high end home theaters, you'll notice that many have columns and sofits.

those are both 'room features' that can have tremendous acoustic benefits.

For example, you could build a wooden frame work for soffit - for example, on the left and right sides of the room. Cover this sofit with a neutral tight weave fabric that blends in with the ceiling color, and most people would never notice it's fabric. then under the fabric you can put what ever you want - You'll gain a of a lot more absorption than you will with a few corner traps, and most people won't even notice.

Columns on the sidewalls can be used for the same thing.

I made the mistake of building some tube traps... they did help, but not enough to continually answer the 'what are those' questions I get from people over and over again. If I had spent the same effort (and money!) on making acoustic sofits, I'd have a much nicer solution.
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post #17 of 79 Old 01-20-07, 10:46 AM
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Lightbulb Re: Bass traps or EQ

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Iíve got it book marked now
That GIF file will stay on my web site permanently, but you can also right-click and use Save Image As to keep a copy locally on you own hard drive.

--Ethan

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post #18 of 79 Old 01-20-07, 11:48 AM
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Re: Bass traps or EQ

The corners will not only help in general frequeny response but will also help with general decay time issues that an EQ can't deal with effectively.

If the mode is width related, consider shifting your entire setup about 6" right or left (speakers and seat so you're still centered with relation to the speakers). This assumes you're sitting dead center now. This is a freebie thing that is often a good thing to do.

Bryan

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post #19 of 79 Old 01-20-07, 08:00 PM Thread Starter
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Re: Bass traps or EQ

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for example, you could build a wooden frame work for soffit - for example, on the left and right sides of the room.
Jack,I like the soffit idea and had thoughts about doing something like this a while ago but I don't think I could make it look good enough to pass the WAF test in the combined living room /HT.If I had the option of building a dedicated HT room from scratch it would be easier to build in something or just buy a commericial product.


Bryan ,thanks for the tip about shifting things off center,I might give this a try.
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post #20 of 79 Old 01-20-07, 08:49 PM
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Re: Bass traps or EQ

Fred,

Have you seen the program CARA before? It's an acoustic modeling program.

You design up your room in 3d and it can calculate what the frequency response will be at the listening position. It also has a cool feature that shows where peaks and valleys will be in your room for a given frequency.

You could use something like this to experiment with different options before commiting to anything.

- Jack

- Jack
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