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I have finished both big horns enough to listen in stereo, and the throats are now much smoother.

I'm not using the MF horns, and have been listening all night. It has been a remarkable experience! (well, the inner-me objects and claims there's nothing remarkable about truly hearing, it's quite natural).

The high frequency roll-off meant absolutely nothing. I have been thinking that adding the MF would only be an act of vanity, and not really helpful either for me or visitors!
I have some fear that people may think I'm insane for using 400kg of loudspeakers to produce a good-telephone bandwidth...

(((The Fostex probably reached much too low and gave a midrange response bump. The highest XO point I tried was 2.2KHz, and I now think the big horns without low pass probably go much higher! Anyway, for now the MF is kept out of the picture)))

Anyway, the big "problem" with listening to only the big horns appeared only when Jussi Björling appeared on the radio this morning. There's a distortion like someone is blowing a whistle when he holds high-pitched tones for long. Perhaps it's just the speakers telling me that I don't like to hear people sing very loud when I don't know the lyrics, but I'm not convinced that I shouldn't be able to enjoy opera, so I want to cure the whistling.

I was under the impression that you did not at all electrically roll off the upper bass, and that the small throat would do all the (kinky) low passing.
So I have started out running the big horns without any filter.
Maybe the whistling distortion is in the 4-5-6KHz area and quite natural for the Fane Studio 8M when it tries to sing higher than it can?


Do you think this MF whistling noise is natural for the Fane and must be filtered out with low pass?


/Ronnie

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