MDF thickness and sound.... (Full Version)

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MDF thickness and sound....

  

dbleon -> MDF thickness and sound.... (3/16/2008 10:36:13 PM)

I've noticed on my last few box builds that if i use a double MDF face (double 3/4"), it ends up sounding different than single face. Am I hallucinating or does the thickness of the MDf actually change the sound? Anyone with experience please chime in.

  
if6was9 -> RE: MDF thickness and sound.... (3/17/2008 12:30:07 AM)

It may due to being a denser material. MDF typically has a density of 600-800 kg/m³. I haven't seen double MDF, but have seen HDF (high density) which is 600-1450 kg/m³. Is the double sided a sandwiched laminate? If so, the different densities and epoxy will effect sound, vibration and strength.

dbleon -> RE: MDF thickness and sound.... (3/17/2008 7:33:04 AM)

Double thickness is just two pieces of 3/4" glued together...

dbleon -> RE: MDF thickness and sound.... (3/18/2008 9:44:37 AM)

anyone?

NoPh33rRaCiNg -> RE: MDF thickness and sound.... (3/18/2008 4:38:54 PM)

the box is more sturdy and doesnt flex as much so it helps

cloak01ls -> RE: MDF thickness and sound.... (3/18/2008 4:42:57 PM)

Usually 1" or doubled up 3/4" MDF is used on enclosures that house very powerful subwoofers that have the ability to flex the wood which can in turn create negative pressure resulting in loss of sound...Insternal bracing is something that is also used to aid in the correction of this problem. Like 'If6was9' said, density and bonding materials can also effect the sound....Unless you are very experienced and have a very tuned ear for bass this is not really noticable...

bobditts -> RE: MDF thickness and sound.... (3/18/2008 4:56:40 PM)

the denser the baffle is, the better it will sound. simple as that. Think of it as mounting a piece of paper vs. mounting the same speaker to a piece of thick cardboard. One is obviously easier to bend.

dbleon -> RE: MDF thickness and sound.... (3/18/2008 5:21:24 PM)

I am going to put the same sub in a single baffle enclosure of the same ft^3 just as a test.  I will let you all know.

blazinloud -> RE: MDF thickness and sound.... (3/18/2008 11:11:58 PM)

Try 1/2" stainless steel [;)]

otnietdehoooo -> RE: MDF thickness and sound.... (3/19/2008 12:32:48 AM)

quote:

ORIGINAL: blazinloud

Try 1/2" stainless steel [;)]


hehe [:)]

splblazer -> RE: MDF thickness and sound.... (5/4/2008 8:52:30 PM)

steal works great with concrete behind it. no flex at all.
kinda hard to awnser your question with out knowing your setup. what are the demensions of the box and what kinda power and woofer?

Butts -> RE: MDF thickness and sound.... (5/7/2008 6:48:30 PM)

More internal bracing is just as good as thicker MDF. Don't use anything thinner than .75".

El_Beautor -> RE: MDF thickness and sound.... (5/7/2008 9:49:18 PM)

Normal MDF will still breath a little when its untreated (ie: no paint or resin). Try putting a piece on top of another, then putting a good shopvac to the top one. Even at 3/4" you can usually still pick up the bottom piece. Doubling up the sheets will reduce this breathing, and depending on how much glue you use between the layers that may also be acting as a sealant.

blazinloud -> RE: MDF thickness and sound.... (5/8/2008 8:15:03 AM)

interesting [8|]

TheBrettster -> RE: MDF thickness and sound.... (5/8/2008 11:26:23 AM)

I have double lined in my truck but then again my sub weights like 100 pounds.

blazinloud -> RE: MDF thickness and sound.... (5/8/2008 3:21:07 PM)

and i was sure you'd be the one to know that size dosent matter [8D]

The A Team -> RE: MDF thickness and sound.... (5/22/2008 10:27:21 AM)

quote:

ORIGINAL: blazinloud

and i was sure you'd be the one to know that size dosent matter [8D]



Mr. Loud where were you at the Sask SPL shows?

  

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