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Poplar ply - any good?

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MarjanM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 12:21pm
I wonder what kind of cardboard wood is used in the JRX range.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dub Specialist Sound Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 12:28pm
Better than chipboard no?
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mini-mad View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mini-mad Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 3:39pm
Originally posted by KidCreole KidCreole wrote:


No. Sthould never be used for speaker cabinets. Too light weight.

thats like saying titainium is to light for aircraft construction......
If it sounds like a gorilla is trying to escape, turn it down.
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MarjanM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 3:44pm
Poplar plywood is much softer then the birch. That is why it is lighter.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote stevie Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 4:11pm
The information I'm able to glean on the web, which is not much, is that poplar plywood can be as stiff as birch. This one here: http://www.panguaneta.com/en/industrial-plywood/okoume-superior-plywood is faced with okoume to give it a harder exterior surface. Its bending strength is 40NM/m2, which is the same as birch plywood.

That doesn't seem to be the general consensus here though.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KidCreole Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 4:45pm
Originally posted by mini-mad mini-mad wrote:

Originally posted by KidCreole KidCreole wrote:


No. Sthould never be used for speaker cabinets. Too light weight.

thats like saying titainium is to light for aircraft construction......
Poplar is balsa wood veneers. Good luck with building cabs from it. If you are going to then I would suggest carpeting like jbl does for their cheapo range

Edited by KidCreole - 21 November 2014 at 4:46pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bass*en*mass Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 4:51pm
guess it depends a lot which manufacturer as with many other things?

poplar is poplar, balsa is balsa, some might mix them up and sell as the wrong deal?
the sheets available from the peavey auction look quite well made, if they even have a hard outer layer as mentioned above why should they not be usable for small, light cabs, appropriate bracing provided?
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MarjanM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 4:59pm
They are used. No one says it can not be used. But it is not as strong as birch.
Many Dynacord boxes are poplar plywood.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KidCreole Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 5:01pm
I have seen it with birch outer veneers. Made in china. It was about 1/3 the price of birch
 
poplar ply is not always poplar. What I have seen was always mixed. Soft core rubbish
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KidCreole Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 5:02pm
You can have string and stiff but if its light it will go walkabout
 
I like bass bins to stay where they are
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nickyburnell Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2014 at 8:45pm
Originally posted by MarjanM MarjanM wrote:

I wonder what kind of cardboard wood is used in the JRX range.


Have some here, made from MDF, screwed together OK, wood screws holding drivers in, although I have seen VERY high end cabs do that in the past.
As I mentioned before, worst I've seen is OSB in EV cabs of old, apart from chipboard of course.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 17 February 2021 at 1:15pm
anyone looking for poplar ply I think I have FINALLY found somewhere that will deliver small quantities for a reasonable price. And they have a cutting service.

https://www.atlantictimber.co.uk/efficency_ply_int_18mm.html

commenting on the above thread:

poplar surface is not as hard as birch but is better than spruce or pine. hard surface can be achieved with high quality resin/paint/liner/fibreglass. poplar takes paint very well.

poplar is not quite as stiff as birch but it is 40% lighter. If you want really stiff panels then use 24mm poplar instead of 18mm birch - it will be lighter and twice as stiff. If you want heavy cabs then replace some of the wood weight with bigger drivers!

poplar machines very well and reduces tool wear.
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