What should I do with this units?

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tiger0691

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It would be a long term project............
 
Add a 90x50 waveguide, cabinet, use PC to figure out the right crossover, slope etc. Replace PC with minidsp if needed.

You have a nice active constant directivity speaker
 
Add a 90x50 waveguide, cabinet, use PC to figure out the right crossover, slope etc. Replace PC with minidsp if needed.

You have a nice active constant directivity speaker

It has its own network(crossover), you can see in the photo.
 
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I really have doubts on the spl-freq graph especially when it's a coax driver

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QUOTE=saikatbiswas82;695989]I really have doubts on the spl-freq graph especially when it's a coax driver

Sent from my Nexus 5 using Tapatalk[/QUOTE]


That was tweeter's graph. I am putting here woofer's gragh
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Do you have the TS parameters for this driver?

The slope of the xo seems pretty steep. Is it 24db/octave?

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I don't think its crossed. You need T/S only to get the proper box calculation.

What is the size of the driver?

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I don't think its crossed. You need T/S only to get the proper box calculation.

What is the size of the driver?

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15 inches!
I have network, bind post.....
My home work to solve is the enclosure.
 
If you need to figure out what enclosure to use why are you posting the graphs? What baffle size and position of driver on the baffle has that crossover been designed for?
 
Slightly OT,

What are these dual concentric drivers and why are they so expensive? where can I find more information about this kind of drivers.
If Dual Concentric / Coaxial drivers are so good why doesn't every speaker manufacturer develop and use them?

1) What are the advantages of a coaxial speaker design?

2) Is it just that a coaxial takes up less space and the sound output is on the same axis?

3) Or can they sound warmer, rounder, more present and smoother in the near field than a horn loaded speaker?

4) Are coaxial designs as capable of handling greater power and higher volumes as horn loaded speakers?
 
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With my limited knowledge and experience I'll try to put some points against the questions. I might be wrong though. Please correct me so that I can enrich my knowledge as well.

Slightly OT,

What are these dual concentric drivers and why are they so expensive? where can I find more information about this kind of drivers.
If Dual Concentric / Coaxial drivers are so good why doesn't every speaker manufacturer develop and use them?
Very few speaker manufacturers have infrastructure or expertise to produce coax speaker drivers IMHO.

A driver price depends on various parameters like:
How nicely it produces sound
The material of the cone, voice coil, magnet etc
How efficient the driver is
1) What are the advantages of a coaxial speaker design?
I think in a proper design any type of good driver will sound good. Obviously that design has to conform to that driver itself.
2) Is it just that a coaxial takes up less space and the sound output is on the same axis?
Maybe this could be one of the reasons s to maintain same axis response.
3) Or can they sound warmer, rounder, more present and smoother in the near field than a horn loaded speaker?
It should not ideally the case. A specific driver might produce best results in one particular design. Given the fact the listener likes it.
4) Are coaxial designs as capable of handling greater power and higher volumes as horn loaded speakers?
It doesn't necessarily mean that. A separate driver combo or a particular design might handle more power than a coax driver or another design.

Everything is relative as there are 'n' numbers of variables.

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If you need to figure out what enclosure to use why are you posting the graphs? What baffle size and position of driver on the baffle has that crossover been designed for?


The Graph....... since I do not know what that mean and how to apply it to volume of the enclosure

I need help and advice from FM to make enclosures that I just posted the graph.


These are the enclosures that were made with same unit by my friends.

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So don't these drivers sound good in the enclosures that your friends made?

The sound would be good. I heard only recorded sound by smart phone(low quality).

The size of enclosures are too big for me.
And I am thinking of using artificial marble rather than wood.
Matter is that I am just keeping the units doing nothing.
 
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The second enclosure in your pictures, what volume is that? You can replicate same volume, altering the height or width or depth won't matter if the volume remains same.

PS : That is a ported enclosure thus requires more volume for more air to push and pull. If you did make a sealed enclosure then that would require less. As a starting point get the T/S parameters from your friends or the cabinet plan and play around with it. Trial and error is the only way here.
 
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