MDF thickness

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09-20-2005, 05:42 PM

#21

hofulstrof

500 Watt CAFz'r

Join Date: Nov 2004

Posts: 779

probly not. just remerber baltic birch plywood and birch ply are 2 very different things.

[ September 20, 2005, 08:16 PM: Message edited by: hofulstrof ]

09-20-2005, 06:05 PM

#22

droy

50 Watt CAFz'r

Join Date: Jul 2003

Posts: 96

Quote:

Originally posted by Sassmaster:
my next box will be made of industrial birch ply... 50 bucks a sheet locally, so not to spendy

Where y'a finding it around here?

Doug

09-24-2005, 01:43 PM

#23

Eli47

500 Watt CAFz'r

Join Date: Dec 2000

Posts: 952

Hmmm, if I use Baltic birch for a speaker cabinet, will it give the sound a foriegn accent? [img]tongue.gif[/img]

What about using two different types of wood, and/or two different thicknesses? How will it affect cabinet resonance?

09-24-2005, 08:38 PM

#24

Lspade

0 Watt CAFz'r

Join Date: Jul 2005

Posts: 42

why such expensive wood? What is so wrong with using cheap stuff like particle board?

09-28-2005, 12:11 AM

#25

Eli47

500 Watt CAFz'r

Join Date: Dec 2000

Posts: 952

Lspade, there's nothing wrong with particle board K3. My T-line cabinet is made of 5/8 particle board, it killed the suspension in my Accord, but It's been bumpin' for many years now.
As Wagonized mentioned, "Bracing is the key".
BTW I think particle board absorbs resonance better than MDF.

[ September 28, 2005, 01:13 AM: Message edited by: Eli47 ]

09-28-2005, 12:52 PM

#26

Paul Niwranski

Guest

Posts: n/a

Generally, particle board has poorer moisture resistance than MDF, it is weaker with respect to holding screws, and it also requires more bracing than similar thicknesses of MDF.

If one is aware of and addresses these issues, then particle board can make an acceptable speaker enclosure. Most people just use MDF.

09-28-2005, 10:58 PM

#27

XBoy

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Thread Starter

Join Date: Sep 2005

Posts: 15

I went to rona, and asked about baltic birch, they had no clue; but they showed by their high quality birch plywood, and there was one that was whiter, and another that was browner.

And then some of the birch had more thinner layers than another variation. What would be better for this birch plywood? More layers or less? It was as much as $44 for a 5x5 sheet...holy

What does baltic birch look like?

Due to my limited space, I can't use 3/4" throughout, except for the woofer face..

Would mixing different thicknesses be bad?