High Efficiency Speaker Asylum

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RE: Low inertia of the moving masses, so as to get closer to the mechanical impedance of air, is what matters!

Posted by Don Reid on April 14, 2017 at 10:20:46:
Dennis wrote "In both cases, rather large radiating surface areas are
the best way to fully engage the room at low distortion."

Dennis, may I safely assume that you consider horns to be large surface area radiators because the impedance matching provided by the horn makes the mouth of the horn the effective radiating surface instead of the diameter of the driver driving the horn?