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TH-18 build

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tv00 View Drop Down
Old Croc
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Joined: 10 August 2009
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tv00 Quote  Post ReplyReply Direct Link To This Post Posted: 20 March 2017 at 6:58pm
Why not build V2 that drops a bit lower and doesn't have the wasted space inside?
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smitske96 View Drop Down
Young Croc
Young Croc


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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 20 March 2017 at 9:21pm
Originally posted by tv00 tv00 wrote:

Why not build V2 that drops a bit lower and doesn't have the wasted space inside?


To be honest I actually didn't see the v2 version..

Although the triangle makes the m20 really solid (al is it a bit overkill).



The testcabinet for the mid/highs is planned next week. I am going to try the 12nw76, if it won't do the job I will look further for something else.
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tv00 Quote  Post ReplyReply Direct Link To This Post Posted: 21 March 2017 at 10:45am
Uh, keep reading the x0c1 TH-18 thread , after the cone correction they end up by extending the horn to make the second bend close enough to the cone to become the cone correction, then they move the triangle also and add a bit of extension this way also.

Same has been made for Jbell SS15 (also a later mod I believe)
Then it all comes very close to Danleys subs
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smitske96 View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 22 March 2017 at 8:18pm
I'm looking forward to do some measurements!
I've got a calibrated Behringer ECM8000 as a mic.
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Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 05 April 2017 at 10:23pm
For the mid/high section I am probably going for the PM90 (diy mid high).
But not with the BMS.. In germany somebody used the RCF ND950 driver.

The RCF will save me allot of money, almost 600,-
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smitske96 View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2017 at 8:22pm
Does anybody have experience with the BMS 2230 horn? someone offered me a pair of BMS 4592 drivers.
They would do the job for the PM90 but there aren't many suitable horns.

The 2230 can be used down to 700 Hz, so it would be on the edge..
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Teunos View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Teunos Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2017 at 8:34pm
I dont have any experience with the 2230.
I do however with the 2236, its larger 60x40 brother.

If you need the extension, there isnt really anything out there that can offer it at an affordable price.
(Big) 2'' CD horns are very rare in make, and probably one of the reasons why the PM90 uses the 1.4'' version instead of the 4592 (which is considerably cheaper).

Sound quality wise i would say the JBL 2380 i have sound a bit better, but they cant do what the 2236 can do down low. Saying that, i traded the 2236 for 2380 a while after i purchased the 2236 along with the BMS 4590 (since i didnt need the extreme extension the 2236 offer (down to 450), i cross the 4590 at ~800) , so if you want 2236 at a good price, i have a pair which is gathering dust.


Edited by Teunos - 03 May 2017 at 8:35pm
Best regards,
Teun.
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smitske96 View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2017 at 8:43pm
@Teunos

Thanks for the reply! Both the 2236 and JBl 2380 are to wide for my application.


If the 2230 won't do the job, I will look further for a pair of 4594 (and I know they are hard to find LOL)
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Teunos View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Teunos Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2017 at 10:17pm
Actually i meant 2385, huge mistake on my part.
2230 is 90*50, 2385 and 2236 are both 60*40

Edited by Teunos - 03 May 2017 at 10:17pm
Best regards,
Teun.
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MarjanM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 2017 at 12:35am
What do you mean hard to find?
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713
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Keen View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Keen Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 2017 at 9:11am
Originally posted by Teunos Teunos wrote:

 2230 is 90*50, 2385 and 2236 are both 60*40
He means size wise, not disp.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Keen Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2017 at 12:19am
Originally posted by smitske96 smitske96 wrote:

Someone offered me a pair of BMS 4592 drivers for the PM90 but there aren't many suitable horns.
PH-642 
http://www.paudiothailand.com/pac/index.cfm/products/product/?id=553
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