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Replacement driver for 6th order BP.

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Young Croc
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    Posted: 19 November 2023 at 4:06pm
Just got four empty sub cabs this week and trying to find some drivers to go in them.

It's Master Audio MD-181BP 6th order bandpass boxes.
Rather compact trap design.


Any good ideas what drivers could be fun? I am going to take measurements of a box and ports to try and sim something, but would be good to have something to start out with. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KDW32 Quote  Post ReplyReply Direct Link To This Post Posted: 19 November 2023 at 7:35pm
What was the original driver in it ? I always looked at a lot of second hand master audio / amate for sale on sites like kinx and wondered what it was like. Was it a Beyma in there originally? 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FOO Quote  Post ReplyReply Direct Link To This Post Posted: 19 November 2023 at 9:41pm
Don't know. They came unloaded. 
But I know they have used Beyma in other MD series boxes, and in the later years they have been using 18sound in the active models.

But it needs to be a driver that works well in compact enclosures. Not that many liters in each chamber Smile
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 20 November 2023 at 9:06am
What is your budget? Also, do you have a oppertunity to do a impedance sweep to find out tuning (with any 18 driver you have laying around)? That way the real tuning of both chambers can be found. Just simulating based on dimensions will 99% not give you the correct data. 


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Post Options Post Options   Thanks (0) Thanks(0)   Quote FOO Quote  Post ReplyReply Direct Link To This Post Posted: 20 November 2023 at 11:20am
Budget would be max 2000 Euro for four new drivers.

I could do a sweep in a couple of weeks. Sounds like that will be the correct way to do it Smile
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FOO Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2023 at 8:17am
After some waiting I finally got a answer from Amata Audio. 

They do not have the original driver in stock anymore, but the direct replacement is. No brand mentioned, but they call it 18LW2400.

Smells like a 18sound 18LW2400 Wink
And they want 220€ a pcs. Thats cheap if it really is the same driver!

Think I'm gonna go for four of them. No-brainer. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KDW32 Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2023 at 5:01pm
Originally posted by FOO FOO wrote:


Smells like a 18sound 18LW2400 Wink
And they want 220€ a pcs. Thats cheap if it really is the same driver!

Think I'm gonna go for four of them. No-brainer. 

Please let us know what turns up? It appears a bargain.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Keen Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2023 at 12:03am
be careful, could be an oriental copy. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FOO Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2023 at 4:54am
Originally posted by Keen Keen wrote:

be careful, could be an oriental copy. 

I really don't think that would be the case. Amate Audio is very high quality products. And if they say that the driver is a direct replacement, I can't do anything else than trust that Smile

But I will take a close look. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2023 at 6:49am
Originally posted by FOO FOO wrote:

Originally posted by Keen Keen wrote:

be careful, could be an oriental copy. 

I really don't think that would be the case. Amate Audio is very high quality products. And if they say that the driver is a direct replacement, I can't do anything else than trust that Smile

But I will take a close look. 


Good people at Amate. I've bought stuff from them before. Very professional.

https://es.wallapop.com/app/user/amatea-316749406-nzxl87xdy1z2/published




Earplugs Are For Wimps!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2023 at 2:59pm
From the current 18Sound price list.


Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FOO Quote  Post ReplyReply Direct Link To This Post Posted: 23 November 2023 at 8:14am
Update. It is not the 18sound 18LW2400. Dammit. To good to be true haha LOL
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