How I built my bass traps...

[Ethan Winer]

Originally Posted by myfipie

hard floor, soft ceiling is best.

Good advice indeed. Why does that sound so familiar?

For a more through explanation see the sidebar with the same name in my Acoustics FAQ:

http://www.ethanwiner.com/acoustics.html

--Ethan

[xmostynx]

..man Ethan you have so many rabbits in the bag dude..

how about this...what kind of PAINT is the best paint to use in a control room

[dim light]

Ear Wax by Mr. Miyagi are blinging my studio walls right now!

[Gonzalo]

Ok guys....I must admit it. I'm building my new bass traps for my studio using Cojo's design and guideness, so you can say that I'm Cojo's Salieri, but that's one of the reason why we're all here: Learn from each other experience.....so Thanks Cojo.
I'm almost done, so I'll post some pics and comments ASAP.
Cheers

[Cojo]

Originally Posted by Gonzalo

Ok guys....I must admit it. I'm building my new bass traps for my studio using Cojo's design and guideness, so you can say that I'm Cojo's Salieri, but that's one of the reason why we're all here: Learn from each other experience.....so Thanks Cojo.
I'm almost done, so I'll post some pics and comments ASAP.
Cheers

I don't know what it means but it sounds great!

Looking forward to the pictures!

[Gonzalo]

Antonio Salieri was a classical composer who lived and worked in Mozart era. There's a popular saying the he "stealed" some compositions from Mozart or some ideas to compose his music. So when I say I'm a Salieri it means that I'm taking or "stealing" your idea and making it mine

PS: I hope now I explain myself better. Sorry for my english

[Cojo]

Originally Posted by Gonzalo

Antonio Salieri was a classical composer who lived and worked in Mozart era. There's a popular saying the he "stealed" some compositions from Mozart or some ideas to compose his music. So when I say I'm a Salieri it means that I'm taking or "stealing" your idea and making it mine

PS: I hope now I explain myself better. Sorry for my english

Aha, good to know! My english is bad too, so don't worry!

[dim light]

I want to steal Cojo and take him to my manor house

[dim light]

[xmostynx]

cojo look what you started! this is the thread of your career! now you have dim dressing you up in little hot pants and taking you off to his manor house! my god what must he be up to?!


hahaha

look! he's even confused! ^ ^ ^

[Cojo]

Originally Posted by dim light

Ooh, good lord...

[Glenn Kuras]

Originally Posted by dim light

Dim you are a nut!!

[dim light]

Pimping the internet! ha.

You guys are nuts -

[dim light]

xmostynx - here is back flip of the room -

It looks too much like a home :=(

[Cojo]

Hey dim. What's those horn speakers that looks like police sirens? ?

[dim light]

They are horn speakers - probably from a factory - they work. I'm going to use them for telephone vocals etc - lots of midrange. They have a cool sound. I found them in a second hand shop. 50 kronor.

[xmostynx]

dim!!!! where did you get that chair?!!?!?! i've been looking for one!

[dim light]

I live in Sweden - bought it somewhere in Stockholm...

Check here:

http://www.hermanmiller.com/CDA/SSA/...440-p8,00.html

[xmostynx]

there is no money for an 800 chair my friend....HOLY SHIT!

[dim light]

I know . but I'm glad I bought the damn thing - my back is like a spring lake.

[ViLo]

I found some nice frames, and they were nicely made....except that the measurements are 1" tick x20.5 inches wide x 43.5 in. high and 7.5 in deep.

That means I have to cut the OC703 to fit it.

Is it worth it?? I know I'm saving some time but not having to build them.

Thanks

[A27Hull]

should cut easily with serated (sp?) or electric knife,

[ViLo]

Originally Posted by A27Hull

should cut easily with serated (sp?) or electric knife,

[gutsofgold]

Quick question.

When you place the 703/705 in the wood frames, wouldn't you want to have enough sheets in there so that they stick out from the frames a bit? That way any reflections would hit the fiberglass first and be absorbed, and not hit the wood.

[dim light]

Hi!

Are you refering to my studio pics?

I have the strips there because they look good and I didn't want to eat too much mid and highs.

I'm sure there are better ways to do this. I haven't finished the room design. I need to treat the ceiling and side walls - front wall and do some measures again.

I'll get back to you!

[gutsofgold]

I was actually referring to cojo's initial picture set. I know it seems nit picky but it would just make sense to have the fiberglass be the first thing any reflections meet and not the wood frame.

[A27Hull]

Originally Posted by gutsofgold

When you place the 703/705 in the wood frames, wouldn't you want to have enough sheets in there so that they stick out from the frames a bit? That way any reflections would hit the fiberglass first and be absorbed, and not hit the wood.

Any reflection off the wood would be minimal, especially with thinner frames. 2" of 703 absorbs mid and high freqs darn well...supposedly better than brand name foam products.

Besides that, I think a wood reflection sounds a bit more 'natural' as opposed to 5/8" sheet rock, or brick.

Having more 703/705 would allow a deeper range of frequency absorption, but still, even this is minimal.

A few others here will tell you that besides a few inches of 703/705, an equally important concept is to have an air space behind the trap, which allows for the optiminum absorption from the panel. The space can be adjusted so that trouble freqs are attentuated to your liking or preference.

[A27Hull]

Refering to Cojo's traps,

The wood frame couldn't be more than 1-2" wide/thick on the front/exposed face.

I would guess that such a small hard reflective exposure would allow more diffusion than it would flutter-echoes.

[gutsofgold]

that sounds reasonable. i just want to make sure i have this down before i go and attempt to build me some.

[Glenn Kuras]

Originally Posted by A27Hull

Any reflection off the wood would be minimal, especially with thinner frames. 2" of 703 absorbs mid and high freqs darn well...supposedly better than brand name foam products.

Besides that, I think a wood reflection sounds a bit more 'natural' as opposed to 5/8" sheet rock, or brick.

Having more 703/705 would allow a deeper range of frequency absorption, but still, even this is minimal.

A few others here will tell you that besides a few inches of 703/705, an equally important concept is to have an air space behind the trap, which allows for the optiminum absorption from the panel. The space can be adjusted so that trouble freqs are attentuated to your liking or preference.

Actually myself and few other people told Dim that the way he built those corner traps was not correct. He should have not had any kind of wood fronts on them. Now mind you this is Dim, so he is going to go against the grain , but we all love him..

Glenn