Is the owner of these speakers happy now and are they “fixed” ?
Is this the only pair to be found “defective”?
Is this the only pair to be found “defective”?
Blockboard was used for making furniture for hundreds of years before the invention of plywood or MDF.
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…Often it was veneered with exotic timbers.It is a stable product.That is what is used on the March audio speakers.
It doesn’t just “sniff” of religion guiding public policy, it was the clear reason for the establishment of these blue laws (I am a POLS professor). I live next to a “dry” town in WA State, and no surprise - the town grew around a small religious college.Ohio has some odd sales restrictions that sniff too much like religion influencing public policy. In most places, you cannot buy alcohol before 11 on Sundays. It can differ by establishment too though. One local grocery store told me they can sell beer but not wine before 11. Btw, anything harder has to be bought at a state store and they usually have much more limited hours.
Definition of blockboard: a plywood board in which veneer layers used in the core are replaced by blocks of wood, the direction of grain of the blocks running at right angles to that of the adjacent veneer.BlockBoard
There are some videos on March's You Tube site that show the cabinets being completely made of solid wood.I was down at the woodworking shop last week, and there were at least 8 boxes, they were all solid wood, assembled with the resin/epoxy filing small splits and gaps, and ready for sanding.
It certainly did not look like a veneer.
Yes you are right.The boxes are solid timber.My mistake.I thought I saw a picture of these speakers which was made using blockboard but can't seem to find it.Regardless of this I think using solid timber and most especially jarrah for these boxes is fine.As I have said Sonus Faber and a couple of other Italian makers have been doing that for ages.Probably not a good idea on larger speakers but for compact speakers it will be fine.I call B.S. - but can you provide a link for what BlockBoard is?
I am not sure when MDF was invented, but using plywood… way back in Mesopotamia times… seems as old as using degree:minute:seconds, or hours:minutes:seconds.
Is Mesopotamia before or after Noah’s ark?
Maybe he used BlockBoard?
And I call B.S. again.
I was down at the woodworking shop last week, and there were at least 8 boxes, they were all solid wood, assembled with the resin/epoxy filing small splits and gaps, and ready for sanding.
It certainly did not look like a veneer.
@jtgofish your statements are lacking fact.
Yes you are right.The boxes are solid timber.My mistake.I thought I saw a picture of these speakers which was made using blockboard but can't seem to find it.Regardless of this I think using solid timber and most especially jarrah for these boxes is fine.As I have said Sonus Faber and a couple of other Italian makers have been doing that for ages.Probably not a good idea on larger speakers but for compact speakers it will be fine.
I have built quite a lot of speakers and believe solid jarrah sounds the best.It is a slow growing medium to high density short grained timber and is very non-resonant and avoids the dreaded "MDF honk".It is also one of the most stable timbers.Sonus Faber use walnut and that is far less stable.
is very non-resonant and avoids the dreaded "MDF honk".
MDF honk? Where do these things come from???
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Wasn't that a limited test set though, as in only 19mm MDF and on one DIY speaker?The MDF ”honk”
Sure it was. But it indicates how standard 19 mm MDF behaves in small enclosures. The interesting part is the non-linearities which are more difficult to explain.Wasn't that a limited test set though, as in only 19mm MDF and on one DIY speaker?
JSmith
I rely on Google TranslatorIf it hasn't be said before along the long trail of these long posts. your English is incredibly good without any doubt.
Agree about that. However the question about the nonlinear behavior of a fully glued MDF cabinet remains. It should not behave like that during normal conditions. What could introduce nonlinearities is the transition of driver to enclosure, including bolt torque.It's completely viable to build enclosures in MDF without getting resonance problems as indicated in that thread and without doing multilayer walls. There are also several different density grades of MDF, and finally you have water resistant MDF. So MDF != MDF.
Babylonians indeed used it and it's quite possible that Akkadians before too.I call B.S. - but can you provide a link for what BlockBoard is?
I am not sure when MDF was invented, but using plywood… way back in Mesopotamia times… seems as old as using degree:minute:seconds, or hours:minutes:seconds.
Is Mesopotamia before or after Noah’s ark?
Maybe he used BlockBoard?
And I call B.S. again.
I was down at the woodworking shop last week, and there were at least 8 boxes, they were all solid wood, assembled with the resin/epoxy filing small splits and gaps, and ready for sanding.
It certainly did not look like a veneer.
@jtgofish your statements are lacking fact.
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The Deluge myth is older, Sumerian (at least), as it is first referenced in Gilgamesh's Poem