Mild steel welded and pressbroke enclosures

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Lol! I want to talk to whales!!!

Covid build, Home Depot was closed for awhile? so I stole some random osb from the garage shelving and made a dumpster divers bass bin... ugly is fun too I guess?
 

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FWIW - here's a klam type of mine with a slotted pipe jammed down its Eminence's 15cx little rectangular horn mouth. Treble is somewhat more "reverberant" without the K-tube extension. There's no damping material in the front chamber. The sealed back chamber could be somewhat smaller to maximize power handling. Its around 2 cubic foot there IIRC.

Normally, these are placed high with the slotted aperture facing "down"


Karlson type klam playing a bit of Nokie Edwards and Adventure "Autumn Leaves" speaker demo - YouTube

regular Karlson are a lot of fun - and sometimes great - even compared to front loaded horn of similar bulk.

Depending on boundary, and driver you might make a pretty cool and compact 60Hz horn.
 
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