Most of us acknowledge that the typical MDF has good acoustical qualities, but curved and shaped parts with this type of construction add greatly to the cost, along with the weight and bulk of MDF thick-wall construction. Conventional particleboard boxes are inexpensive, readily available, and a known commodity. A bead of glue is dispensed into the V-groove and the enclosure is miter-folded into a box shape.
The grove-folding process cuts a V-groove into the wood, down to, but not through, the vinyl covering. Most bookshelf and larger boxes are simply medium-density fiberboard (MDF) that is vinyl wrap-covered and “groove folded” out of a larger sheet (see Photo 1). Other materials have been tried with limited acceptance but that has begun to change in a big way and is the focus of this article.
Wood and wood particle board cabinets are traditionally used for mid-to-large-size speaker enclosures.
#Folded horn speaker enclosure design drivers#
Enclosures also need to provide a rigid structure to support the drivers with minimum panel resonances. This is needed to avoid the front and back radiation from the cone from canceling each other. At the most basic acoustic level, the speaker enclosure’s purpose is to isolate the woofer’s back wave from the front.
#Folded horn speaker enclosure design driver#
No matter how much effort is spent on the loudspeaker driver design, the enclosure characteristics are still a significant factor in achieving smooth response, controlled bass, and defined stereo image.
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