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Is this driver suitable for horns
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oren View Drop Down
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    Posted: 25 October 2019 at 12:17pm
im was looking for a cheap replacement driver for an old bass bin and i came across this https://www.bluearan.co.uk/index.php?id=FTP18FH510CP&browsemode=category
The FS is 30hz and the qes is 0.27 so the ebp is 111 . Does this mean the driver can be loaded into a folded horn ? The driver has got a 3 inch voice coil . would this affect the cone stability ?
Music is nice..
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Terrible BL , probably crumble in FH at high power 
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Elliot Thompson View Drop Down
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That driver has all the qualifications for a Horn.

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Elliot Thompson
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Motorstrenght isn't high, also has a light cone which can be an indicator of cone strength.
So definitely watch out if you try to use it with a higher compression ratio.

Personally I would use it for a BR cab.
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Elliot Thompson View Drop Down
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Bear in mind that the magnet is a Neodymium not a Ferrite. So the magnet is strong enough under the given circumstances. You cannot achieve a Qts of 0.26 if the motor strength is not strong enough.


Best Regards,  


Edited by Elliot Thompson - 26 October 2019 at 12:35am
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Originally posted by Elliot Thompson Elliot Thompson wrote:

Bear in mind that the magnet is a Neodymium not a Ferrite. So the magnet is strong enough under the given circumstances. You cannot achieve a Qts of 0.26 if the motor strength is not strong enough.


Best Regards,  

It has a ferrite biased motor, not neo,  BL looks low as its a 4 ohm version, i would not say its a mush motor but its not going to be the strongest and hardest in a horn, its no spl monster, it depends what you are looking for though, sometimes the weaker motors sound smother and easier to listen too, less brutal, the cone may not strong enough for high compression loading though.  
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Elliot Thompson View Drop Down
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Originally posted by Timebomb Timebomb wrote:

Originally posted by Elliot Thompson Elliot Thompson wrote:

Bear in mind that the magnet is a Neodymium not a Ferrite. So the magnet is strong enough under the given circumstances. You cannot achieve a Qts of 0.26 if the motor strength is not strong enough.


Best Regards,  

It has a ferrite biased motor, not neo,  BL looks low as its a 4 ohm version, i would not say its a mush motor but its not going to be the strongest and hardest in a horn, its no spl monster, it depends what you are looking for though, sometimes the weaker motors sound smother and easier to listen too, less brutal, the cone may not strong enough for high compression loading though.  




Faital Pro states Neodymium on their website. 4 ohm is a nominal load and usually means nothing from 100 Hz down as the box will dictate the impedance curve at the given frequency. I can't say I have ever measured a horn that reaches it's nominal load below 200 Hz.

Originally posted by oren oren wrote:

im was looking for a cheap replacement driver for an old bass bin...

The driver is most appropriate for the job based on Oren wanting a cheap replacement.

Best Regards,
Elliot Thompson
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Originally posted by Elliot Thompson Elliot Thompson wrote:

Originally posted by Timebomb Timebomb wrote:

Originally posted by Elliot Thompson Elliot Thompson wrote:

Bear in mind that the magnet is a Neodymium not a Ferrite. So the magnet is strong enough under the given circumstances. You cannot achieve a Qts of 0.26 if the motor strength is not strong enough.


Best Regards,  

It has a ferrite biased motor, not neo,  BL looks low as its a 4 ohm version, i would not say its a mush motor but its not going to be the strongest and hardest in a horn, its no spl monster, it depends what you are looking for though, sometimes the weaker motors sound smother and easier to listen too, less brutal, the cone may not strong enough for high compression loading though.  




Faital Pro states Neodymium on their website. 4 ohm is a nominal load and usually means nothing from 100 Hz down as the box will dictate the impedance curve at the given frequency. I can't say I have ever measured a horn that reaches it's nominal load below 200 Hz.



https://faitalpro.com/en/products/LF_Loudspeakers/product_details/index.php?id=151070150

Directly from Faital Pro web site,states Magnet is ferrite ring.
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oren View Drop Down
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There is also an 8 ohm version with slight different specs i dont know if that would be any different . If not does anyone have any other reccomendations ? i am looking for a driver under 200 euro really dosent need to be too thumping but just something that can be reliable . the bin was originally rated 600 w but the driver is no longer in production and i cannot get any specs from celestion. 600w ish  is fine with me 
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Originally posted by knet94 knet94 wrote:

Originally posted by Elliot Thompson Elliot Thompson wrote:

Originally posted by Timebomb Timebomb wrote:

Originally posted by Elliot Thompson Elliot Thompson wrote:

Bear in mind that the magnet is a Neodymium not a Ferrite. So the magnet is strong enough under the given circumstances. You cannot achieve a Qts of 0.26 if the motor strength is not strong enough.


Best Regards,  

It has a ferrite biased motor, not neo,  BL looks low as its a 4 ohm version, i would not say its a mush motor but its not going to be the strongest and hardest in a horn, its no spl monster, it depends what you are looking for though, sometimes the weaker motors sound smother and easier to listen too, less brutal, the cone may not strong enough for high compression loading though.  




Faital Pro states Neodymium on their website. 4 ohm is a nominal load and usually means nothing from 100 Hz down as the box will dictate the impedance curve at the given frequency. I can't say I have ever measured a horn that reaches it's nominal load below 200 Hz.




Directly from Faital Pro web site,states Magnet is ferrite ring.



The link does not work...

It does not take away the fact that you cannot achieve a Qts of 0.26 with a weak motor. A Qts ranging from 0.3 - 0.2 is ideal for horn-loading for it offers a strong motor. This is why all loudspeaker manufactures that focus primarily on horn-loaded cabinets designs focus on drivers offering a Qts ranging from 0.3 - 0.2
 

Best Regards,


Edited by Elliot Thompson - 27 October 2019 at 8:19am
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Originally posted by oren oren wrote:

There is also an 8 ohm version with slight different specs i dont know if that would be any different . If not does anyone have any other reccomendations ? i am looking for a driver under 200 euro really dosent need to be too thumping but just something that can be reliable . the bin was originally rated 600 w but the driver is no longer in production and i cannot get any specs from celestion. 600w ish  is fine with me 


Faital Pro is a very good highly respected loudspeaker brand. It is a good replacement for Celestion 18 inch woofers. Whether you choose the 4 ohm version or 8 ohm version of the Faital Pro 18FH510 comes down to musical taste.


Faital Pro 18FH510 8 ohm: Slightly more low frequency extension at the expense of slightly less upper bass

Faital Pro 18FH510 4 ohm: Slightly more emphasis on the upper bass at the expense of slightly less low frequency extension

Celestion 18 inch woofers fell in the same category. What model number is the driver you are planning to replace?

I may have the Parameters of the driver you are seeking information on in my files.

Best Regards,


Edited by Elliot Thompson - 27 October 2019 at 8:40am
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oren View Drop Down
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Points: 82 		Post Options Post Options   Thanks (0) Thanks(0)   Quote oren Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2019 at 10:10am
the serial number was worn away sadly . i believe the driver was something similar . perhaps a prototype to the ftr18 4080 f . it looked very similar and tge bin was also 600 w howether celestion state this driver is not suitable for horns and the recommended the ftr 18 4080 fd wich to me dosent seem like a hugely suitable driver either eapecially considering other drivers in the same price range being much more powerfull . 
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