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Fibre Glass MT121 Horns.
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adambomb View Drop Down
Old Croc
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Joined: 10 April 2006
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Points: 3220 		Post Options Post Options   Thanks (0) Thanks(0)   Quote adambomb Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2007 at 10:56am
That looks like a better price.. for sure! (although that still represents a good 100% markup.. wish I could make those kinda margins on the kit I sell.. but then again.. I probably sell more, bigger market).
 
Couple of things worry me...
 
1. The horn looks straight (ie, not exponential)... does this mean they are less efficient??
 
2. The link above takes me to a page showing the complete cabs... but still no plots / data... do you have any more details?
 
3. No idea what drivers they where designed for (although the text does mention some B&C models).
 
4. Any clue on splay angles?
 
5. How is the compression driver supported... would I have to home brew this bit?
 
6. Is the compression driver horn included in this price (if so it obviously gets more attractive).
 
Might be interested.
 
Cheers,
 
Adam.


Edited by adambomb - 17 May 2007 at 11:12am
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adambomb View Drop Down
Old Croc
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also... do they have flanges on the rear for driver mounting / sealing to a baffle?
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ceharden View Drop Down
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@Tekasis:

If you can give more exact details on the cabs I can probably give you more accurate recommendations.

The 10MD26 is another driver designed mainly for horn loading.  I haven't heard it but from the specs: While it would work to some extent in a reflex cab it's not ideal.  If you want to use it for real midrange ie above 200Hz then either a sealed cab or a short horn would be best.  What frequency range do you want to cover?

I'm slightly confused that you want 12" and 10" drivers doing a similar job.  Is this for the same system or are you working on two different setups?

I've been a mainly B&C user til now but I'm awaiting a delivery of various 18Sound drivers.  If the actual drivers are as good as the specs suggest I think I'm going to be using a lot more of their stuff.  The 12" neo drivers especially look very nice.  Prices are good too.

Depends on the flare design and the intended useage but 12PE32 or 12NDL76 are your main options from B&C.
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Tekasis View Drop Down
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Points: 6492 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tekasis Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2007 at 2:36pm

The cabs are shown over on this thread Chris.

 
Can you reply on that one so it don't look like I'm Hi-Jacking this Fibre Glass Horn thread ?
 
Appolgies Adam.
 
Cheers. 
 
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jb007 View Drop Down
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I discused mid freq. speakers with a lot of peole and very often I got answer that BC 12NDL76 is great(one of the best) speaker! 12MH32 is maybe a little bit better, but this speaker is more HEAVY (7,4kg  vs  ndl76-4kg)
 
Does somebody have scheme of good horn for 12ndl76?


Edited by jb007 - 17 May 2007 at 10:33pm
http://www.djforum.cz
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ceharden View Drop Down
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I've tried the 12NDL76 and 12MH32 in my little wedges (just happens to be the two 12" drivers I have here!) and they sound pretty much identical.  The 12MH32 maybe has a slightly smoother top end but that's only an issue if you're crossing at 2kHz or higher.

I think the fact that mid horns are difficult to DIY build is the reason why there aren't many plans out there.  Hence why for the time being I'm going with a pair of direct radiating drivers.  Ultimately I think I'm going to have to design my own.
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Richard Hart View Drop Down
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Originally posted by mykey mykey wrote:

http://zmatek.jinak.cz/diy/pbaudio/coaxialhorn12-2/show_construction.asp.html
 
Yeah, but have you got the specs for the 212 and the 112? I.e. polars, response graphs. This is nothing but a DIY project.
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mykey View Drop Down
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Originally posted by adambomb adambomb wrote:

That looks like a better price.. for sure! (although that still represents a good 100% markup.. wish I could make those kinda margins on the kit I sell.. but then again.. I probably sell more, bigger market).
 
Couple of things worry me...
 
1. The horn looks straight (ie, not exponential)... does this mean they are less efficient??
 
2. The link above takes me to a page showing the complete cabs... but still no plots / data... do you have any more details?
 
3. No idea what drivers they where designed for (although the text does mention some B&C models).
 
4. Any clue on splay angles?
 
5. How is the compression driver supported... would I have to home brew this bit?
 
6. Is the compression driver horn included in this price (if so it obviously gets more attractive).
 
Might be interested.
 
Cheers,
 
Adam.
Yes!!! The X in MX12 stands for 'COAX' it's has you see it in the picture
complete, whole , one.
1. Waveguide
2.Dont have, but my ears told me they were the bollox
3.B&C's
4.40x40 the 2'' is a B&C horn
5.done for you, just 4 bolts
6.yes 
 
100% mark up £140-50%=70
 
£70 to make a 8mm thick 12'' horn, 2'' horn and heavy gauge 2mm steel bracket in the UK?
 
are you on drugs?
 


Edited by mykey - 18 May 2007 at 3:17am
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ceharden View Drop Down
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Is it possible to mount an alternative HF flare in those horns?  I know we've touched on this before but do you think the flare would work without a HF driver at all?  Or would it be better?  Or could you mount a phase plug on the HF mounting bracket instead?
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gingerbiscuit69 View Drop Down
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Originally posted by mykey mykey wrote:



Yes!!! The X in MX12 stands for 'COAX' it's has you see it in the picture
complete, whole , one.
1. Waveguide
2.Dont have, but my ears told me they were the bollox
3.B&C's
4.40x40 the 2'' is a B&C horn
5.done for you, just 4 bolts
6.yes

100% mark up £140-50%=70

£70 to make a 8mm thick 12'' horn, 2'' horn and heavy gauge 2mm steel bracket in the UK?

are you on drugs?




2) great sales talk there ... imagine that on the Void site, the stasys3 mk2, ''da bollox of speakers'' - rog mogale

people say that about class d and skytech!


3) he was asking what model of B&C's, not you repeating B&C when he knew it was some sort of B&C



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adambomb View Drop Down
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Points: 3220 		Post Options Post Options   Thanks (0) Thanks(0)   Quote adambomb Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2007 at 11:31am
£70... yup I reckon I could get that made for that.. easy... if your paying more, pm me.
 
As Ginger said "the bollox" isn't really an acurate description is it... anything sensible to add?
 
Again, as Ginger said... which B&C models exactly?
 
By Splay angle I ment, how are the boxes to be positioned after assembly... surely there will be a correct angle to splay them at (I would like to build this into my cabs so I would need to know before building).
 
Also "waveguide" is a bit of a loose term init? How effecient are these horns with the correct drivers?
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mykey View Drop Down
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Points: 9680 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2007 at 12:25pm
adambomb!
25kg of resin in the Uk 5 years ago was 65 pound
 
the 12'' horn on its own weighs 22kg
so lets say 2 thirds of that is resin
plus the 2'' horn
plus the bracket, thats going to cost atleast 25 quid
 
do i have to work it out for you?
 
don't be a plank and tell me you could get all three made for 70 quid.
 
 
adambomb is that you in the pic?
 
 


Edited by mykey - 21 May 2007 at 12:30pm
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