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Poplar ply - any good? |
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MarjanM 
Old Croc 
Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7702 |
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 Posted: 21 November 2014 at 12:21pm |
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I wonder what kind of cardboard wood is used in the JRX range.
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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Dub Specialist Sound
Old Croc
Joined: 15 November 2013 Location: Smethwick Status: Offline Points: 4873 |
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Posted: 21 November 2014 at 12:28pm |
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Better than chipboard no?
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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...
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mini-mad
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Joined: 13 July 2012 Location: london Status: Offline Points: 6903 |
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Posted: 21 November 2014 at 3:39pm |
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thats like saying titainium is to light for aircraft construction...... |
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If it sounds like a gorilla is trying to escape, turn it down.
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MarjanM
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Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7702 |
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Posted: 21 November 2014 at 3:44pm |
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Poplar plywood is much softer then the birch. That is why it is lighter.
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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stevie
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Joined: 16 March 2008 Location: Dorchester Status: Offline Points: 425 |
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Posted: 21 November 2014 at 4:11pm |
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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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KidCreole
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Joined: 06 November 2013 Location: London (East) Status: Offline Points: 3599 |
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Posted: 21 November 2014 at 4:45pm |
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Edited by KidCreole - 21 November 2014 at 4:46pm |
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Mykey Wattco
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bass*en*mass
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Joined: 03 September 2009 Location: "unknown" Status: Offline Points: 4009 |
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Posted: 21 November 2014 at 4:51pm |
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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
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Joined: 10 February 2005 Location: Macedonia Status: Offline Points: 7702 |
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Posted: 21 November 2014 at 4:59pm |
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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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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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KidCreole
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Joined: 06 November 2013 Location: London (East) Status: Offline Points: 3599 |
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Posted: 21 November 2014 at 5:01pm |
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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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Mykey Wattco
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KidCreole
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Posted: 21 November 2014 at 5:02pm |
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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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Mykey Wattco
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nickyburnell
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Posted: 21 November 2014 at 8:45pm |
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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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It's everything, not everythink!
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snowflake
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Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3012 |
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Posted: 17 February 2021 at 1:15pm |
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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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KidCreole wrote: