Why not horns?

Ok found something !

06-05-10: Macrojack
I use my horns in a two way application with a light, fast 15 inch Italian woofer. The crossover is set at 400 Hz. right now with 24 db LR slopes in both directions.
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WS:
There is no such thing as a fast 15 inch woofer operating @ 400 Hz IMO ! Consider how directional the speaker will be @ 400 Hz and it's large mass ( relative ) with it's accompanying cone coloration ...

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Macrojack

I cut the woofer off at 33 Hz. and let the horn reach for the stars. My compression driver has heat sinks and is designed to play up to about 40 db louder than what I use it for.
I have a conical wooden horn made of solid cherry wood that does not seem to color anything. I'm not sure about the validity of these few comments about disadvantages in horn use but none of it seems to apply to my set up. I've listened carefully over the last few days fo signs of coloration, phase problems, compression, etc. and no symptoms are apparent to me.

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WS:
Interesting , are you saying it does not exist in your system or you do not hear it ? based on what you have expressed so far , it would be baffling to not have a high degree of nasality .
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Macrojack:
Bill Woods, who designed my horns and sold them to me along with aluminum throat adaptor and B&C driver, says that these represent the best midrange he can provide and that he has tested and measured them against QUAD, Manger and Heil, which he says are the best other mid range producers.

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WS:

all 3 drivers you mentioned have a completely different sonic image and acoustic center to your horn speaker!
how is he comparing them , FR, THD ?
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Macrojack:

To be honest, I don't remember if he also mentioned Walsh. We haven't talked in a while.
In any case, I am not a technician and I am not one who believes I possess superior listening skills. What I can say is that I am unable to hear any lag between my woofer and my horn, and that is a tone and body to musical instruments (timbre, I guess) which I never heard equaled by any other speaker.
Perhaps I'm the one who is guilty of lumping everything together. I don't get out much and I haven't heard any other horns in years. Maybe mine are not so representative of the breed as I assumed. Nonetheless, my horns do represent what is possible and I think that a larger company could produce this caliber of work at or below Bill's prices if they could justify the research and tooling. Bill has probably already provided much of the former and the latter can be outsourced reasonably, perhaps even domestically.
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WS:

Is there any data available on your horn setup ....
i would be interested in seeing the impedance magnitude and phase! of each driver ....

Regards

B&C DCX 50 compression driver

RCF L15P530 woofer

You can Google those

If you want to know about my horn, contact Bill Woods at Acoustic Horn Company. It's called the AH300.

You can contact Bill with your questions. I'm not qualified to answer. I just write the check.

Thanks for the info :

Web Site : http://www.acoustichorn.com/tech/conical/

Nice work , he did not list any technical details on the site, did you get anything with your drivers ?

regards,

Macrojack,

I could not find anything on the DCX-50 , only a DCM50 is listed on there Website. Is the DCX dis-continued ?

The DCM50 has quite a bit of cavity resonance and not much response after 10K being a full 5 db down @ 12 K . I guess an eq could help out here.

Are you EQ'ing your system ?

DCM 50 is a mid-range driver designed to cross over at 9 Khz. DCX 50 is a coax. I don't use the tweeter.
Here's what you need to know. I like my speakers quite a lot and I don't care if they are flat, fat or phony. However, B&C is a very highly respected line of Italian drivers. I use them because Bill recommended them to me, not because I read the specs. RCF is also an Italian company, also highly regarded.

I included links to my drivers earlier. If you want answers, go back and read the thread. You seem like you want to challenge me. Why?

If you are really interested, do some research on your own. So far you have been too lazy to read this whole thread. As for your IMO and your presumed expertise -- save it for someone who needs advice. I have received sufficient guidance from Bill.