Double 10 and Horn

Chris Burns

Freshman
Nov 13, 2016
39
3
8
Connecticut
Peter, question.. Thoughts on the Ciare with a pair of 14NDL88s in lieu of a 12? Not for your design I’m just looking at the possibility of using my two new 14NDL88s I have sitting here with it. I was going to do them with the XT originally, but now this horn has me intrigued. Have you run any tests with anything on it yet? I’m curious on how it loads down to the 4-500s. I’m considering an MMT build with these and the 4594, or potentially the new 314X or BC990 at 700hz.

How do you see phasing and lobing with that config?


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Peter Morris

Senior
May 8, 2011
1,042
137
63
Australia
Hi Chris,

I'm am still waiting fro the PR614 horns to arrive, they were ordered almost a month ago... but COVID-19 delays prevail.

I have done some rough SIM's with 14" B&C and the PR614 ... it looks like it might work with a reasonable vertical pattern and just a little lobing assuming you locate the 14's and horn as close as possible.
 

Chris Burns

Freshman
Nov 13, 2016
39
3
8
Connecticut
Hi Chris,

I'm am still waiting fro the PR614 horns to arrive, they were ordered almost a month ago... but COVID-19 delays prevail.

I have done some rough SIM's with 14" B&C and the PR614 ... it looks like it might work with a reasonable vertical pattern and just a little lobing assuming you locate the 14's and horn as close as possible.

that’s great feedback thank you Peter. I purchased a pair of those amazing drivers along with a pair of ME90 horns and a pair of 780 CDs from someone who never used them, and all of that was for the cost of just the pair of NDLs.

The 14” driver and very unique and bridges a really nice gap between the efficiency and performance of the 15 and the directional and coverage pattern of a 12.

The specs on that are super impressive. A pair of those with a 80hz tune is really outstanding. The levels attainable mathematically for a pair are upwards of 136db at 500hz. Attenuated Flat from the 80hz tune is still a solid 132db. They will keep up and outperform the B&C or BMS Coax.

I’m going to order a pair of the Ciare now. Once USSpeaker opens up we should see a lot of movement. B&C opened last week and Eminence is set to open very shortly if not already.


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Grant Manson

New member
Nov 8, 2019
20
9
3
32
none
Just wanted to jump in and say thanks to those who helped me figure out the dual 10 issues i was having. A wooden insert with a layer of acoustic foam later and we've got a nice looking response with some outrageous output for the size of these thing.

All i need to do now is EQ the tweeter :)
 

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Monne Tsiu

New member
Jun 8, 2018
1
0
1
Maseru, Lesotho
Just wanted to jump in and say thanks to those who helped me figure out the dual 10 issues i was having. A wooden insert with a layer of acoustic foam later and we've got a nice looking response with some outrageous output for the size of these thing.

All i need to do now is EQ the tweeter :)
Where have you placed the wooden inserts and the acoustic foam?
Secondly, what is the maximum SPL you are getting from the cabinet?
 

raul garcia

New member
Jun 25, 2019
8
0
1
39
barcelona
Hola estoy restaurando unos 2x10 con dos beyma 10 g40 y beyma cp800 ti. También tengo unos 10 mi100. Que me daría un mejor resultado? ¿Qué configuración me recomendais?
Tengo que modificar los puertos de sintonización.
20180729_004711.jpg
 

David Morison

Freshman
Aug 21, 2012
153
8
18
Aberdeen, Scotland
If you want to use these boxes full range (ie without subwoofers) or with a low crossover frequency the G40 will be better as it has nearly 2x the amount of linear excursion, so can handle more lowmids & lows.
If you always use these with subwoofers for example crossing over about 150Hz or higher, the MI100 can get about 2dB louder than the G40 but using a smaller amplifier.
 

raul garcia

New member
Jun 25, 2019
8
0
1
39
barcelona
Si utilizaría subwoofer y mi intención es cruzarlos a 100hz.
Me preocupa un poco bajar cp800 a 650 Hz como comentáis el horn td 360 te recomienda 800hz, ahora los tengo cruzado a 1200 hz
 

David Morison

Freshman
Aug 21, 2012
153
8
18
Aberdeen, Scotland
Si utilizaría subwoofer y mi intención es cruzarlos a 100hz.
Me preocupa un poco bajar cp800 a 650 Hz como comentáis el horn td 360 te recomienda 800hz, ahora los tengo cruzado a 1200 hz

If you want to use them at full program power, then for a 100Hz crossover I'd stick with the 10G40.
The TD360 is pretty small so I would not attempt to cross it lower than the manufacturer's recommendation.
 

Chris Burns

Freshman
Nov 13, 2016
39
3
8
Connecticut
Need a bit of a refresh and confirmation.

If designing a MTM, the Mid/woofs edges of the cones need to be within is it one wavelength of each other to blend and not lobe or is it 1/2 wavelength at the highest crossover point to the Comp driver between them? I also dont remembe if its edge of driver cone to edge of driver cone or center of driver to center of driver measurement.

Sorry I know this is elementary but I just want to ensure Im correct in a project Im moving on.

Thanks again gang


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