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Isobaric Types: Planar | |
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This alignment is similar in concept to a
"clamshell" or face-to-face isobarik and will behave in a similar
manner, but it also has some of the problems of the tunnel-loaded
isobaric that are associated with having a coupling chamber between the
two drivers. It is somewhat space-inefficient in that you are giving up
usable space behind the outside driver, but it produces a very
interesting visual effect if you put a sheet of plexiglass in front of
the speakers. | |
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 Construction tipsThe loading chamber (indicated by the pink shaded region) should be as short as possible while still allowing for free movement of the speaker's surrounds.  You
should also do everything possible to minimize the surface area of the
loading chamber since any trapped air in it essentially becomes part of
the moving mass of the speaker system.If you are more industrious, you can round off the ends of the loading chamber as seen in the diagram. If you intend to utilize a ported design, port lengths can be rather large. This is common with single iso-group enclosures because of the small box volumes. For this reason, you may want to fire the port as shown in the diagram below. This should allow you to extend part of the port tube outside the enclosure without it being visible. |
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