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Upgrading Yorkville LS1208 Woofers?

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crude_sound View Drop Down
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    Posted: 23 September 2022 at 11:52pm
Hello everyone,

I've been doing live sound for several years but have never built/customized my own cabinets.

I have four Yorkville LS1208 horn loaded subwoofers. I'm wondering if I would get any increased performance (low frequency extension) by upgrading the driver. I opened one cabinet up and measured the driver with DATS V3.

I've heard that changing the driver in a horn can be questionable. they're currently loaded with what looks like an OEM'd B&C ferrite magnet driver with an F(s) of 44Hz.
I talked to someone before who said he replaced his with B&C 18TBW100's and got better low end response.

I've also heard that neodymium drivers aren't well suited for horn loading because the magnets are more sensitive to heat.

Are either of those statements true?

Link to Subwoofer Product Page: https://yorkville.com/subwoofers/elite/product/ls1208/

Pics of cabinet, driver, and DATS response in and out of box: https://www.dropbox.com/scl/fo/nmml3781l6z1ckkj045av/h?dl=0&rlkey=2lxsgwc14h5i88zlv8i41swk6

So far I've looked at these drivers:
B&C 18TBW100
LaVoce184.03
FaitalPro 18HW1070

I appreciate any feedback,
Thanks!

EDIT: I have no idea how to make the links clickable.


Edited by crude_sound - 23 September 2022 at 11:57pm
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Conanski View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Conanski Quote  Post ReplyReply Direct Link To This Post Posted: 24 September 2022 at 1:16am
With subs and horns in particular it is the enclosure that determines low freq response,  drivers that are suitable don't have much effect outside of power handling ability so for the most part the idea of upgrading these cabs would be wasted $$. 
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crude_sound View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote crude_sound Quote  Post ReplyReply Direct Link To This Post Posted: 24 September 2022 at 1:26am
What are the general characteristics that make a driver better for horn loading?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 24 September 2022 at 1:32am
https://www.speakerplans.com/index.php?id=faq6

some of the driver models and mentioned cab plans are a bit old by now, but some great information in there still.
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crude_sound View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote crude_sound Quote  Post ReplyReply Direct Link To This Post Posted: 25 September 2022 at 3:13am
Interesting reads! 

So based on what he's saying about driver specs, in general which of these two would someone prefer based on the specs (just so I can learn). Like EPB and Q specs.

And is the bit about neodymium not being good for horn loading true or false?

https://www.precision-devices.com/products/18-inch-drivers/pdn-1852/

https://www.precision-devices.com/products/all-products/pd1850-3/
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BANG Quote  Post ReplyReply Direct Link To This Post Posted: 25 September 2022 at 2:26pm
RCF L18P400
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