LOUDspeakers
please note this website is permanantly "under construction", or possibly not constructed properly in the first place
note also that designs shown,are mostly "under construction" or...
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straight 42Hz exponential bass horn
coming soon
shown during experiments with efficient small drivers
with high free air resonance.
problems with high frequency lobes and baffle step.
and too tall! guitar (and chimney pots) shown for scale