TH-18 Flat to 35hz! (Xoc1's design) - Page 139 - diyAudio
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Old 16th July 2013, 07:16 PM   #1381
sbjacob is offline sbjacob  United States
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Originally Posted by NEO Dan View Post
Hi Pabesco,
I've not used the 18LW2400's but I do not think you will be disappointed, and they should do nicely for a "smaller" system. There are two routes you can go on wood IMO, one being quality plywood, and the other being something cheap like OSB. The middle ground of particleboard, MDF, and regular construction ply you should avoid altogether.
Quality plywood is or can be tough to find and really expensive, especially on an island. 13 ply Baltic Birch B/BB grade is generally considered the good stuff, but what makes it good is that there are no voids and the quality of the inner ply's is nearly as good as the outer surface you see. Baltic Birch is totally made of birch, not just birch veneer for outer skins.

BB ply:
Click the image to open in full size.

The difference:
Click the image to open in full size.
Both examples appear to be of good quality, but I would prefer not to buy the one on the left. Fewer ply's give a tendency to to warp and the thin outer veneers are easy to damage.

This is what you want to avoid:
Click the image to open in full size.
The gaps due to voids or splices can make air leaks or rattle

There is some stuff called Auraco Ply that I tried on some monitors:
Click the image to open in full size. Click the image to open in full size.
It's OK if available, not great but serviceable. It's one of those that tends to warp, but it is generally void free.


If you are inexperienced in woodworking get help, you don't need fancy tools but you do need to be able to make clean straight accurate cuts.

No scoops
I agree on using good quality plywood I used Baltic Birch on my 4 DIY Klipsch WMW bass bin's on the horn section of the cabinet and Red Oak for the outsides.
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Old 16th July 2013, 08:06 PM   #1382
sbjacob is offline sbjacob  United States
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I agree on using good quality plywood I used Baltic Birch on my 4 DIY Klipsch WMW bass bin's on the horn section of the cabinet and Red Oak for the outsides.
Thats MWM Bass Bins I need new glasses
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Old 16th July 2013, 11:44 PM   #1383
NEO Dan is offline NEO Dan  United States
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Nice work, is that BB MDO ply? I've never seen that before...
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Old 19th July 2013, 08:12 PM   #1384
sbjacob is offline sbjacob  United States
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Nice work, is that BB MDO ply? I've never seen that before...
Dan the inner part of the bin is Baltic Birch sorry not sure what you mean by MDO?
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Old 19th July 2013, 09:12 PM   #1385
NEO Dan is offline NEO Dan  United States
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I've never seen MDO with a BB core...
Click the image to open in full size.
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Last edited by NEO Dan; 19th July 2013 at 09:15 PM.
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Old 19th July 2013, 09:16 PM   #1386
sbjacob is offline sbjacob  United States
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Click the image to open in full size.
The Red Oak plywood has about 10 plys
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Old 19th July 2013, 09:55 PM   #1387
NEO Dan is offline NEO Dan  United States
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Lets try again...
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Old 19th July 2013, 10:10 PM   #1388
sbjacob is offline sbjacob  United States
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Lets try again...
Yes not cheap it was about $120 a sheet it's twice as heavy as regular shop grade birch plywood.
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Old 20th July 2013, 11:23 AM   #1389
Mark Kravchenko --- www.kravchenko-audio.com
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Your monkey needs a new prescription Dan.
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Old 20th July 2013, 12:32 PM   #1390
NEO Dan is offline NEO Dan  United States
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Your monkey needs a new prescription Dan.
You off your meds again Chimpchenko?
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