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In the Forum: Horn-Loaded Speakers
In the Thread: The Edgarhorn RTA response.
Post Subject: Edgarhorn Upper BassPosted by skushino on: 8/31/2007
"The top response of the upperbass channel is challenged. I do not know why it is – a wrong driver, a wrong curve in J-horn or wrong made filter… "
That sweep mirrors what I hear - specifically tepid and weak upper bass in the presence region between 250 - 500 Hz. Bruce's horn is too short, the mouth is very slightly too small and the throat is too large. It is too small because, believe it or not, the limitation is the dimensions of the standard plywood sheets used to build the horn. Also, a larger horn would be "too hard to handle" (manufacturing and shipping), according to my source. And you know my source.
There are other issues too, like low-quality x-over components, 9dB attenuation on the 2441, the Fane tweeter, cabinet damping, etc. These can be easily remedied. The small upper bass horn can't.
Too bad. The Edgarhorn has potential to sound wonderful. The sub-bass and mids are fine after cleaning up the x-over, the hf is fine after substituting the driver. But the upper bass is lame in comparison to the rest.
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