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  1. #1

    Default Need help choosing a horn for my PA speaker

    I'm thinking about building a 2-way DJ speaker based on the Dayton Pro 8" and Selenium D220Ti. I will be using it with a sub, so low bass performance is not important. What is important is sound quality and excellent high-frequency dispersion. Here are the horns I've come across in my research. Has anyone auditioned some or all of these?

    This alleged Nexo clone is one of my top choices. I've heard the Nexo speakers, and they have amazing dispersion.

    http://www.parts-express.com/pe/show...umber=292-2576


    This 100x40 horn looks interesting. It doesn't appear to be constant directivity, and its design appears unconventional. Is it using those flaps to reflect sound out to the sides? I wish it was rectangular because I don't really like the way it looks.

    http://www.parts-express.com/pe/show...number=264-318


    The SEOS-12 is apparently a popular DIY horn. I wonder how it will do for PA use.

    http://www.parts-express.com/pe/show...umber=300-7070

    I wish I had time to read through all the posts about that horn.

    http://www.avsforum.com/t/1291022/he...-rallying-here


    These 2 horns are alleged clones of the JBL JRX horns. Any good?

    http://www.parts-express.com/pe/show...number=270-318

    http://www.parts-express.com/pe/show...umber=292-2572


    This QSC also looks interesting. Is it a popular Econowave horn?

    http://www.parts-express.com/pe/show...number=245-625


    I wonder if "constant radiation" is the same as constant directivity.

    http://www.parts-express.com/pe/show...umber=292-2569

    http://www.parts-express.com/pe/show...number=270-300


    This JBL horn costs a lot but I've seem them at affordable prices used. Any good?

    http://www.parts-express.com/pe/show...number=294-420


    I am also open to suggestions on alternative woofers and compression drivers. I would like to keep the woofer at 8" to keep it compact but if there is a good reason to go bigger, I will consider a larger woofer. Thanks in advance!

  2. #2

    Default Re: Need help choosing a horn for my PA speaker

    How about a pair of Karma 10's? Of course, these would probably end up in your living room.......
    Back in the day, we "thinkers" listened to Rush, Led Zeppelin, Pink Floyd, and Yes.
    Now we listen to Rush, Led Zeppelin, Pink Floyd, and Yes.

    Currently resigned to living in balmy Zephyrhills, FL with the snow birds.

  3. #3

    Default Re: Need help choosing a horn for my PA speaker

    I used a D220 a while ago and wished I would have got this http://www.parts-express.com/pe/show...number=294-601.

  4. #4

    Default Re: Need help choosing a horn for my PA speaker

    Thanks! That's actually a really good idea. I've been reading about the Tempest, and I came across this post that is making me seriously consider one of those kits. Now I have to figure out what the difference is between the Karma, Fusion, and Alpha models.

    http://techtalk.parts-express.com/sh...83#post1899983

    Quote Originally Posted by zhillsguy View Post
    How about a pair of Karma 10's? Of course, these would probably end up in your living room.......

  5. #5

    Default Re: Need help choosing a horn for my PA speaker

    What didn't you like about the D220Ti?

    Quote Originally Posted by jont View Post
    I used a D220 a while ago and wished I would have got this http://www.parts-express.com/pe/show...number=294-601.

  6. #6

    Default Re: Need help choosing a horn for my PA speaker

    Half your battle for sound quality will be the crossover design so you should consider picking a complete design to work from.

    8" is a little small for most PA applications but this is nice...

    http://www.diysoundgroup.com/wavegui...sion8-kit.html

    Or go with a Dayton Pro 12, D220Ti, and the QSC waveguide

    http://techtalk.parts-express.com/sh...07#post1658207

    Lots of other choices out there really blur the line between PA and hi-fi.

  7. #7

    Default Re: Need help choosing a horn for my PA speaker

    That is very true and one of my main concerns. I thought about using the built-in crossover in the Crown XLS1000. Would that work? But I guess it would be much less expensive to go with a proven passive design than to have two amps vs. one.

    http://www.parts-express.com/pe/show...number=245-500

    I thought about the Fusion 8 but it doesn't use the SEOS-12 waveguide.



    Quote Originally Posted by donprice View Post
    Half your battle for sound quality will be the crossover design so you should consider picking a complete design to work from.

    8" is a little small for most PA applications but this is nice...

    http://www.diysoundgroup.com/wavegui...sion8-kit.html

    Or go with a Dayton Pro 12, D220Ti, and the QSC waveguide

    http://techtalk.parts-express.com/sh...07#post1658207

    Lots of other choices out there really blur the line between PA and hi-fi.

  8. #8

    Default Re: Need help choosing a horn for my PA speaker

    If you want to stay with an 8" (I do, because of WAF), I would suggest: http://www.diysoundgroup.com/wavegui...lpha8-kit.html

  9. #9

    Default Re: Need help choosing a horn for my PA speaker

    Quote Originally Posted by RoboCam View Post
    That is very true and one of my main concerns. I thought about using the built-in crossover in the Crown XLS1000. Would that work? But I guess it would be much less expensive to go with a proven passive design than to have two amps vs. one.

    http://www.parts-express.com/pe/show...number=245-500

    I thought about the Fusion 8 but it doesn't use the SEOS-12 waveguide.
    But an 8" horn and an 8" woofer looks right Or 12 & 12...10 & 10....

    You need a fancier crossover to to flatten out the CD/horn response. This can help explain it. http://www.peavey.com/support/techno...ms/horn_eq.cfm

    Failure to do it right helps explain why many folks say they don't like horns....

  10. #10

    Default Re: Need help choosing a horn for my PA speaker

    The Karma kits are gone from their website! Any idea what's going on?

    I'm also considering the Fusion-8 Alchemy but I'm worried about finding replacement parts such as tweeter diaphragms. I tried searching for the DNA-205 compression driver but I didn't find anything about it. I noticed that it is crossed-over higher at 2500Hz, so I'm hoping that will allow it to handle more power (I'm going to use it as a PA speaker).

    Another thing I don't understand about it is that it has a constant directivity horn but from the response curve, I don't see any reduction in level as the frequency goes higher. Is the crossover designed with CD horn EQ? From the picture, it doesn't look like there are enough parts in the crossover for that but one of the main reasons I want this model is because it is designed by Jeff B.

    http://www.diysoundgroup.com/wavegui...sion8-kit.html

    But I'm not completely giving up on my idea of using the D220Ti and the Pyle PH715 horn yet =) I found this design, and I was hoping I could modify the crossover to integrate it with another woofer such as the Dayton Classic 8 (DC200-8) because I have a few of those laying around. I know it won't be anywhere near as efficient but it would be a lot less expensive (I think).

    http://ampslab.com/nightingale_v.htm

    I was thinking about using this DC200-8 crossover that Chris R designed for the Dayton Classic 8

    http://techtalk.parts-express.com/sh...26#post1945826

    with the tweeter section from this crossover (designed for the D220Ti in the PH715),

    http://ampslab.com/nightingale_v_passive.htm

    and then I'd adjust the padding resistor in the tweeter section to level match the drivers. Would that work?

    Quote Originally Posted by zhillsguy View Post
    How about a pair of Karma 10's? Of course, these would probably end up in your living room.......
    Last edited by RoboCam; 11-02-2013 at 07:38 PM.

  11. #11

    Default Re: Need help choosing a horn for my PA speaker

    Quote Originally Posted by RoboCam View Post
    The Karma kits are gone from their website!
    Try this: http://www.diysoundgroup.com/wavegui...rma10-kit.html

  12. #12
    Join Date
    Oct 2010
    Location
    Grand Blanc, MI
    Posts
    978

    Default Re: Need help choosing a horn for my PA speaker

    Quote Originally Posted by RoboCam;

    But I'm not completely giving up on my idea of using the D220Ti and the Pyle PH715 horn yet =) I found this design, and I was hoping I could modify the crossover to integrate it with another woofer such as the Dayton Classic 8 (DC300-8) because I have a few of those laying around. I know it won't be anywhere near as efficient but it would be a lot less expensive (I think).

    [url
    http://ampslab.com/nightingale_v.htm[/url]

    I was thinking about using this DC300-8 crossover that Chris R designed

    http://techtalk.parts-express.com/sh...26#post1945826

    with the tweeter section from this crossover (designed for the D220Ti in the PH715),

    http://ampslab.com/nightingale_v_passive.htm

    and then I'd adjust the padding resistor in the tweeter section to level match the drivers. Would that work?
    You would need 4 DC300 to be close to the efficiency of one beta 10. They would go much lower in the correct box, but that is not what you are looking for in this case.

  13. #13

    Default Re: Need help choosing a horn for my PA speaker

    Quote Originally Posted by RoboCam View Post
    I'm also considering the Fusion-8 Alchemy but I'm worried about finding replacement parts such as tweeter diaphragms. I tried searching for the DNA-205 compression driver but I didn't find anything about it. I noticed that it is crossed-over higher at 2500Hz, so I'm hoping that will allow it to handle more power (I'm going to use it as a PA speaker).
    I believe the DNA-205 is similar to the B&C DE10 so you may be able to swap drivers if you had to. Ask Erich. The D220Ti has a really inexpensive replacement diaphragm and would be a better choice if you plan to beat the crap out of it (feedback, dropped mic, etc.). Crossing over the D220Ti at 2500 Hz will allow it to take more power.

    Mixing and matching crossover designs might work OK if the designs and drivers are quite similar.

  14. #14
    Join Date
    Dec 2008
    Location
    Long Island
    Posts
    3,218

    Default Re: Need help choosing a horn for my PA speaker

    Quote Originally Posted by RoboCam View Post
    But I'm not completely giving up on my idea of using the D220Ti and the Pyle PH715 horn yet =) I found this design, and I was hoping I could modify the crossover to integrate it with another woofer such as the Dayton Classic 8 (DC300-8) because I have a few of those laying around.

    (Snip)

    and then I'd adjust the padding resistor in the tweeter section to level match the drivers. Would that work?
    Not at all.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

    http://www.diy-ny.com/

  15. #15

    Default Re: Need help choosing a horn for my PA speaker

    Could you explain why? The tweeter section is designed for that specific compression driver and horn (D220Ti and PH715), and the woofer section is designed specifically for that 8" Dayton Classic woofer (the DC200-8). Both crossover sections target the same crossover frequency of 1500Hz. Wouldn't that be far better than using an off-the-shelf 2-way crossover? Are you concerned that the two drivers won't sum properly, creating a peak or dip near the crossover point? If so, wouldn't such a peak/dip be insignificant or easily corrected? The crossover slopes are quite steep, so wouldn't that minimize that problem? Or are you concerned about other issues?

    Quote Originally Posted by Face View Post
    Not at all.
    Last edited by RoboCam; 11-02-2013 at 07:34 PM.

  16. #16

    Default Re: Need help choosing a horn for my PA speaker

    They are out of stock

    Quote Originally Posted by Beau View Post

  17. #17

    Default Re: Need help choosing a horn for my PA speaker

    Allegedly they will be restocking a lot of items soon.

  18. #18
    Join Date
    Sep 2005
    Location
    Stittsville, Ontario
    Posts
    2,060

    Default Re: Need help choosing a horn for my PA speaker

    Quote Originally Posted by donprice View Post
    Or go with a Dayton Pro 12, D220Ti, and the QSC waveguide
    Yeah I don't see you getting the SPL necessary from 8" drivers, I have some 8+1 PA cabs I built from spare parts(Eminence driver similar to the Beta 8) and they're easily 6db quieter than my 12+1 set, which means you would need a dual 8 +1 design to keep up with half decent PA subs.

    These Selenium drivers aren't impossible to tame, it may just take a little more l-pad than theory suggests and CD horn correction. I'm listening to my D210 loaded boxes right now and they are pretty smooth even with no additional EQ.. got a 15" loaded Cubo sub filling out the bottom end below 80hz.
    Paul O

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