I like to use 3/4 MDF braced with 2x4 and 2x3. Also like to use 1/4 rounds on the front corners to help with diffraction. Coat the inside of the cabinets with Mass Coat to both completely seal and help dampen panel resources
Rob
Rob
thanks for sharing!I like to use 3/4 MDF braced with 2x4 and 2x3. Also like to use 1/4 rounds on the front corners to help with diffraction. Coat the inside of the cabinets with Mass Coat to both completely seal and help dampen panel resources
Rob![]()
What about the front baffle material? I bet there would be difference when using (almost) non-porous material like aluminum and for example untreated plywood.....
-No parallel surfaces
-No sharp edges along the entire front
-A waveguide or a front that is spherical
-Not shaped like a box
-Not made from panels of regular wood
...
What about the front baffle material? I bet there would be difference when using (almost) non-porous material like aluminum and for example untreated plywood.
You mean beause of the porosity? The reason why aluminum is used is rather its high rigidity/stiffness and ability to be casted in the desired shape.What about the front baffle material? I bet there would be difference when using (almost) non-porous material like aluminum and for example untreated plywood.
So we can extrapolate from that "aluminum baffle = good"? Or perhapsI'll bet that is part of why Genelec uses aluminum.
In the day and age of 5-axis CNC machines and titanium printing 3D printers I find it hard to believe that "ease of manufacture of a desired shape" is a thing in the extreme high end.You mean beause of the porosity? The reason why aluminum is used is rather its high rigidity/stiffness and ability to be casted in the desired shape.
Casting is much cheaper than printing or milling such a metal enclosure.In the day and age of 5-axis CNC machines and titanium printing 3D printers I find it hard to believe that "ease of manufacture of a desired shape" is a thing in the extreme high end.
Once you are in the $$ $$$ or even $ $$$ range it makes little difference.Casting is much cheaper than printing or milling such a metal enclosure.
It depends on production volume.Casting is much cheaper than printing or milling such a metal enclosure.
An average Genelec 80x0 model has a MSRP of $500 where it surely matters a lot if an enclosure costs 20$ or $200 to produce.Once you are in the $$ $$$ or even $ $$$ range it makes little difference.
Of course, was referring to the Genelec case, thus loudspeaker enclosures and production numbers.he ideal manufacturing method is very production volume dependant but the cost of various manufacturing techniques is forever changing.
Also CNC machining doesn't make much sense for such thin 3D shells as a one step production as not only the speed but also the material waste is enormous, only for the final machining of a raw cast. You find though such one step machining at some "high end" $$$$$$$ loudspeakers where they feature the silly production as an advantage and reasoning for their price to the average fan who has no knowledge in such topics.CNC machining is much cheaper than it used to be but both of them are very slow, so for small volume with few items to amortise the tooling cost and time of production not being a problem both of these make some sense.
I was agreeing with you.An average Genelec 80x0 model has a MSRP of $500 where it surely matters if an enclosure costs 50$ or $200 to produce.
Of course, was referring to the Genelec case, thus loudspeaker enclosures and production numbers.
Also CNC machining doesn't make much sense for such thin 3D shells as a one step production as not only the speed but also the material waste is enormous, only for the final machining of a raw cast. You find though such one step machining at some "high end" $$$$$$$ loudspeakers where they feature the silly production as an advantage and reasoning for their price to the average fan who has no experience of such issues.
Well it is 3.5 times denser than MDF but, yes, probably many times more than that stronger!It is relatively inexpensive, it is light and fairly strong
So we can extrapolate from that "aluminum baffle = good"?
Absolutely true, my diy creature, has a 2 inch frontal baffle, two MDF sandwiched with glued roofing tar. And silicon gaskets.from what I have experienced with drivers resonating front baffles, like the idea of a dampening brace for each driver (and in this case is for a speaker with an aluminum front baffle)![]()