Open Baffle High Efficiency speakers, setup for reference

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Slot Loaded Open Baffle Dipole Speaker First Sound with passive crossover at 475Hz and 4500Hz Listen here: SJdwtcSlZ3o

The Slot Loaded Open Baffle Project Article By Nelson Pass, DIY AudioProjects And Articles On Enjoy the  In terms of sound pressure you can obtain a similar result with just one pair loaded by a well matched cabinet either transmission line or

lunaris slot Open baffle loudspeaker prototypes with passive equalization and passive crossovers load to drive for a solid state power amplifier The impedance peak I decided to try and build an open baffle speaker today with a old tannoy 15 I had lying around