what's the proper way to model this speaker?

[freddi]

a standard Karlson klam is attached to a box containing two speakers, one of which faces down in a tunnel, and both driver's rear waves exit through the gap between the shelf and rear panel down the tunnel into the K- coupler. A coaxial with horn or K-tube may be used for the front firing speaker. The system might be re-arranged into a standard box aspect Karlson-coupler. A kludge somewhere is in order I know this thing has been built by other Karlsonites who have given a hint of how to build. Can it be fudged in hornresp?


here's a little midbass klam I made for fun some years back with an Eminence 18 - rear chamber was sealed.