Quote:

Personally I hate most of the PA speakers in the lower price range. A single 15" with a 2" horn will get the sound out there but boy do I hate that 2" horn.



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Voight pipes, Zigmahornets, and Fitzmaurice plans.
Voight pipe speaker cabinets
Zigmahornet review
Bill Fitzmaurice Designs

The most inexpensive is the single speaker Zigmahornet.
The most efficient is the DR200 / DR250 by Bill Fitzmaurice designs.
(Will cause cognitive dissonance, when you see melded crossfired piezo arrays and double reverse folded horns)