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In the Forum: Audio Discussions
In the Thread: Crossover Design
Post Subject: EdgarHorns crash survival guidePosted by Romy the Cat on: 12/4/2005

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 drdna wrote:
Now I have had the EdgarHorns in my system for a number of weeks and have been moving them around the room and moving things in the room around to make them sound their best.

If you are not familiar with horns then it usually take a few month to learn how to get better sound out of them….

 drdna wrote:
So far I have come to this problem:  when I have heard many other speakers that are reasonably good, they reproduce the sounds but do not make resonant sounds so the speakers "disappear" in the room.  This is not the case so far with the EdgarHorns.  So I think they are fundamentally resonating in an undesirable way, which makes it very easy to locate them in the room.  This is more true with the lower midrange than the upper midrange, so this makes a weird effect: as the range changes, I can hear the soundstage moving from one position to being sort of sucked toward the speaker cones.

Drdna, generally I would not agree that your assessment of the EdgarHorns is correct. There is nothing fundamentally wrong in them that would prevent them to "disappear" in the room. Yes, the upper bass horn is not time aligned, rectangular and more sounds like a direct radiator then a bass horn but even as is it should be all necessary loudspeakers "disappear" tricks. What you describe sounds to me more like you confused the polarity of your loudspeaker connections. Check the acoustic phase of each drive with a phase tester. The damage you are describing is too sever to be a “design fault”

 drdna wrote:
The other thing missing is the "magic."  The liquid iridescence of Sound that is so emotionally attractive to me and allows me to think about what the musicians were thinking instead of how the stereo is sounding -- this is missing for some reason. 

This is more complicated. The "magic” never come form speakers but is rather a result of your labor

 drdna wrote:
I have heard the Edgar speakers before in Gardena and it was there in spades, so it must be something to do with my system, not the speakers is my first thought.  It is really a frustrating state of affairs, because everyone who hears my system says it is the best thing ever and they are totally amazed and saying it sounds so lifelike, but I am very dissatisfied personally.

Well, the idiotic and fundamentally bogus way in wish the audio people comment about each other installation is a separate subject. It is perfectly fine that you personally dissatisfied, it rather is very positive sign.

 drdna wrote:
However, because I had some of this magic before with my old speakers in my system, I am also thinking it must be the Edgar speakers at fault.  Perhaps it is actually the interaction of the speakers with the rest of my system and I need to find a way to modify this.

I do not think so.

 drdna wrote:
  Any suggestions?

Well, I do not know your system and I do not know what in your case means “EdgarHorns”. If I where you I would get an assurance that the drivers are in the same phase. (Unless Bruce used second order or something like this). Then I would acoustically (not geometrically time-alighted all channels. After this I would disconnect a LF section and tweeters. Then I position the speakers at the distance of your choose, pointing them toward to your shoulders. Then I would move the speakers apart form each other, keeping them aiming to your shoulders, unit the mile image being to step back. After this I would push the EdgarHorns 2-3” back closer to each other and begin very slightly tow-in and out them until the imaging between then would not get a curve that you find “correct” for your room. Hereafter, play with minute towing-in and out of EdgarHorns and tune the space between the speakers more priestly. After you find a correct approximate positioning of your MF section begin to play with the output volume of your upper bass channel. The EQ that Bruce did in his default crossover is too generic to be correct for any room and you should tine your upper bass horn +/- 1dB -3dB to make sure that it would turn your room on. (An RTA would really help). Then add the LF channels at approximately minus 3dB of thier normal volume. Listen like this for a week, get use to and do not introduce the full LF bloom. Then slightly increase the LF, until it becomes flat at your RTA. An a few weeks you might begin o ass tweeters, very slowly and very concretively…. During all that time do not really worry about the "magic” and all the rest thing. You need before the reaching the “magic” to get the elemental things resolved: to position the speakers in your room more or less acceptable.

What I said above is juts very very very general approach, with many details missed, sort of a view from 50000 feet. However, without proper integrations with the room there is no need to talk about the Edgar speakers at a fault. Also, in future I might suggest that you might discover some other more interesting behavior of your EdgarHorns then juts the “disappearing act”. Still, I never had EdgarHorns and I never head them properly installed. From what I head Bruce in his demo rooms do not demonstrate them properly as well.

It would be fan to see if somebody was able to squished out of the Edgar horns an interesting result. I heard that there is local guy here in New England with a full scale Edgar installations who try to be a little more serious about his intentions then the majority of the Edgar’s Morons-customers. I this his name is Bill Gaw, I believe he is a doctor and all that I know bout him that he is a horn guy who hangs around the “Enjoy the Music’s” clown and the “Silence of Sound’s” whore. If I come across listening his installation or if I hear anywhere else a properly set up Edgar’s playback then I would sound more confidently…. BTW, last CES the Edgar’s playback was quite fine and I had not problems with disappearing or any other things… there were some issues but the “disappearance” was not one of them.

Rgs,
Romy the Cat

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