Why use MDF?
The speaker box should be constructed from Medium Density Fiberboard (MDF). See the MDF FAQ for more information on obtaining and using MDF, along with safety issues. You should use minimum 3/4″ MDF which is sold in 4×8 sheets. You will probably need 2 sheets. This can cost up to $40 a sheet, but it is worth it. MDF is a somewhat like particleboard in that it is made up of wood fibers glued together. The difference is the density of the fibers in the wood. Fiberboard is denser, harder, and stiffer over plywood and particleboard. It is a dead wood that won’t resonate. It does not have the problems of screws being easily pulled out or easily warping when exposed to water like particleboard. Compare the top sheet, which is MDF, to the bottom sheet of particleboard. You can see that the MDF is much more dense.
The speaker box should be constructed from Medium Density Fiberboard (MDF). See the MDF Board FAQ for more information on obtaining and using MDF, along with safety issues. You should use minimum 3/4″ MDF which is sold in 4×8 sheets. You will probably need 2 sheets. This can cost up to $40 a sheet, but it is worth it. MDF is a somewhat like particleboard in that it is made up of wood fibers glued together. The difference is the density of the fibers in the wood. Fiberboard is denser, harder, and stiffer over plywood and particleboard. It is a dead wood that won’t resonate. It does not have the problems of screws being easily pulled out or easily warping when exposed to water like particleboard. Compare the top sheet, which is MDF, to the bottom sheet of particleboard. You can see that the MDF is much more dense.
