To make it clear, these are the full plans for the SL design, rather than the edited section in post #6. The A and B versions only differ by the slope of the baffle, the B offered as a alternative that's easier to build. Interestingly, about 60% of constructors so far have chosen that one for aesthetic reasons.

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You can find them in the full guide on our website via
DIY - Eikona SL compact loudspeaker - E J Jordan Designs
DIY - Eikona SL compact loudspeaker - E J Jordan Designs