ROAR prototype build 
Tuesday, March 14, 2017, 17:44
Prototype build pictures courtesy of Johannes Rodin who also designed and built it, this is a 2x12" TPQWR (or 6:th order series tuned bandpass) loaded with Beyma 12P80Nd :

The result spurred us to get the ROAR designs finalized and published, although still purely theoretical they all follow the same basic premise and theory as the prototype shown above but with a lot more iterations and careful tuning to get the best result out of each driver size.

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