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Need recommendations for dedicated Mid-Tops

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Tucker View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tucker Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2020 at 9:24pm
Originally posted by bass*en*mass bass*en*mass wrote:

skip the hd15s, get your hands on a pair/4 of the latest neo upgraded Soundgear Orbit4s and enjoy..
these fit on poles, dont require dedicated kickbins to cover 80hz up, sound great within 10m!
;)


Those look great, but hard to get in America :/
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bass*en*mass Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2020 at 9:39pm
.. James/Timebomb on here does ship to US, at competitive prices..! 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tucker Quote  Post ReplyReply Direct Link To This Post Posted: 20 July 2020 at 5:52pm
Originally posted by Blarghmasta Blarghmasta wrote:

Originally posted by Tucker Tucker wrote:

Originally posted by Blarghmasta Blarghmasta wrote:

So, are there any commercially available speakers that are just mid-tops? I would love to buy something like two small cabs with two 4x10 horns in each, but I can't find anything like that on the market.
 

4x10 horns wouldn't cover the mid range. They're the tweaters. That's why mid-tops generally combine a BR 10" or 12" with a tweater horn. The BR speaker covers the mids and the horn covers the tops. Check out the frequency ranges covered by horns and you'll see they're for the top end of the frequency range.

There are quite a few pre-built mid-top speakers out there. In fact most PA speakers you see for small gigs at a coffee shop or something like that are probably mid-tops, they may cover some of the low end but probably not very well.

How do 15" do at replicating mid frequencies? If I already have enough woofers, would some high horns be appropriate?


15" would probably work fine, I suspect a 12" might be a little better/louder at producing those frequencies though. You'll just have to look at the frequency response graph for individual speakers and it'll show you where they work best
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Blarghmasta Quote  Post ReplyReply Direct Link To This Post Posted: 20 July 2020 at 10:02pm
Originally posted by Tucker Tucker wrote:

15" would probably work fine, I suspect a 12" might be a little better/louder at producing those frequencies though. You'll just have to look at the frequency response graph for individual speakers and it'll show you where they work best

Currently, I'm thinking about custom building a single cabinet with two horn tweeters in it, since my PA already has four 15"s, an 18" and two horn tweeters. I feel like those two extra tweeters will balance out the mix a lot more. Something like these:  https://www.eminence.com/speakers/supertweeter-detail/?model=APT150


Edited by Blarghmasta - 20 July 2020 at 10:03pm
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MarjanM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 21 July 2020 at 12:17am
Two horn tweeters in one cabinet is a BIG NO!
Marjan Milosevic
MM-Acoustics
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Blarghmasta Quote  Post ReplyReply Direct Link To This Post Posted: 21 July 2020 at 4:58am
Originally posted by MarjanM MarjanM wrote:

Two horn tweeters in one cabinet is a BIG NO!

Can you explain why?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jo bg Quote  Post ReplyReply Direct Link To This Post Posted: 21 July 2020 at 8:21am
Apt 150 is good from 3500 hz at lower volume, or from 5 khz with more power.
A 15 inch will not reach that high and even if it would , it will beam like a laser. You can take a sealed or reflex 15 up to 1000 hz, better lower.
Horn loaded  15s will loose steam even lower, but load more in the lower region.
So you need some mids, no way an apt (or 2 or 3) could keep up volume and frequency wise with 4 15 inches.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 21 July 2020 at 11:03am
Originally posted by Blarghmasta Blarghmasta wrote:

Originally posted by MarjanM MarjanM wrote:

Two horn tweeters in one cabinet is a BIG NO!

Can you explain why?




Unless you know exactly what you are doing you end up with a comb filter.

Comb filtering is an affect that happens when you have simultaneous arrival of the same signal from two sources, due to triangulation between the two sources and your ears, the two signals will arrive at your ears at very slightly different times this will cause a phase difference that will then make the two signals either add or subtract from each other (depending on the phase diffrences) causing peaks and troughs in the sound.

The affect is that your ears will hear a sound at location A, however moving a couple is inches to position B the sound will change drastically. This is due to interference pattern generated between the two signals….. Its basic physics.

The trick is get the centres between the two sources within a ¼ wavelength of each other so they couple and present as a single source, due to the relative wavelengths this is fairly simple to achieve with woofers and midrange drivers, however a ¼ wavelength at say 10Khz is a shade over 8.5mm (0.335") and 20Khz is half that. This is impossible to achieve using two standard horns… and before you say “What about line arrays” they use complexed wave guides so the sound is presented as a uniform wave front.



edit: added YouTube links





Edited by APW - 21 July 2020 at 2:15pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote csg Quote  Post ReplyReply Direct Link To This Post Posted: 21 July 2020 at 1:56pm
Blimey, I haven’t heard anyone ask for a 10x4” horn for about 20 years! Fane J105 anyone.....
“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Digbethdave Quote  Post ReplyReply Direct Link To This Post Posted: 21 July 2020 at 5:38pm
Originally posted by Tucker Tucker wrote:

Originally posted by csg csg wrote:

Originally posted by Digbethdave Digbethdave wrote:

Psd 2002 is not nice

Oh, i dont know. It makes a good paperweight on a windy day..



can you recommend a decent driver from Eminence?
Not HF no. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 21 July 2020 at 9:26pm
Apparently Eminence N314 is good one, and the N151M (a blatant BMS copy) too.


Marjan Milosevic
MM-Acoustics
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