Other wood material flexes too just has a different resonance, can be stiffer & lighter or not etc. MDF is not that bad neither excellent. Bracing, constrained layer damping, thin wall & loss via contact mass BBC, rigid school resin and/or metal based etc etc. are methods.
It seem ART from Scotland is using the same unit.Price 12500 GBP
One interesting aspect of that speaker is its weight: 40 kg!
It tells me something about that cabinet, probably very solid. I think the 8 inch woofer with its powerful magnet needs a very stable cabinet to shine.
I will add an extra bracing from front to back just below the woofer, I could hear some resonance there with music, and even feel it vibrate with me fingers. So 2 mods to do, one extra bracing and a few ribs at the back. I hope this will be good since after that I have no ambition to go on, and I don´t want to get smaller volume than that, might affect bass.
Salas, what do you think of using this foam I have on this panel? It is 2cm thick and I am considering using it at the back-panel between a few supporting ribs to dampen the back bounce, then use some of the usual white stuffing over it.
Same foam is on this panel:
Same foam is on this panel:
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