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Simulating Bandpass-Horn

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PoteirosCorp View Drop Down
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    Posted: 04 November 2005 at 12:22pm

Hi, now that I can build this sub, I'm decide to try another speaker on ES18BPH. I was Going initially for 18LW1000 (18sound) It's the best option, but my amps won't going to push them really hard, so I want to check it for SM-118n (as I see the 15" version works well on HD15)

Another on the list is Das G45, C-650LF (original driver), LX60, Das 18P, and other who appears.

The woofer on the troath is upside down, dont know how much this will affect on mouth of the "horn"

Thank you



Edited by PoteirosCorp - 04 November 2005 at 2:30pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PoteirosCorp Quote  Post ReplyReply Direct Link To This Post Posted: 05 November 2005 at 2:04pm

The E18-600A  seems to match c18-650LF    
Its from P-audio too

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Mircea Bartic View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mircea Bartic Quote  Post ReplyReply Direct Link To This Post Posted: 05 November 2005 at 2:21pm
the es18-bph is compatible with the folowing drivers from p-audio :

SD-18
C18-650EL
WN-18S
IMF HP-18S
IMF HP-18W

suitable drivers are in the order I've listed them

there might be more, but I didn't even plot other drivers



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Post Options Post Options   Thanks (0) Thanks(0)   Quote PoteirosCorp Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2005 at 2:05am

http://www.p-audio.co.uk/products/db_product_1_7_e18-600a.ht m

http://www.p-audio.co.uk/products/db_product_1_16_c18-650_el .htm

http://www.p-audio.co.uk/products/db_product_1_13_sd-18.htm

Just one miystake of my:
E18-600A match SD-18, and C18-650EL seems closer to LX60 from Beyma.

Have you the input parameters for hornresp???

Thank You

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Mircea Bartic View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mircea Bartic Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2005 at 3:02am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote freddyi Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2005 at 8:19am
here's a link to some P-Audio woofer parameters - 650-el Qe and qt look higher than specs posted on other sites but lower than above - lol. (thought you might be using A-J horn for sims)

T-S http://www.bltsound.com/index.php?crn=102&action=show&am p;am p;am p;show_products


Edited by freddyi - 06 November 2005 at 8:22am
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Mircea Bartic View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mircea Bartic Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2005 at 10:39am
the parameters used in the simulation were taken straight from the box in witch the speaker came in.

P-audio does make minor modifications to their speakers all the time.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote PoteirosCorp Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2005 at 2:54pm

Thank you Nexus
 I'll try the E18-600 and see what happen

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Mircea Bartic View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mircea Bartic Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2005 at 3:30pm
ok
please keep us posted on the actual response for the e18-600
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PoteirosCorp Quote  Post ReplyReply Direct Link To This Post Posted: 07 November 2005 at 1:44am

OK, I did the sims, here we go:

With SD18

 

With C18-650EL


With E18-600A

 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote PoteirosCorp Quote  Post ReplyReply Direct Link To This Post Posted: 07 November 2005 at 1:48am

With LX60  beyma:

 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote PoteirosCorp Quote  Post ReplyReply Direct Link To This Post Posted: 07 November 2005 at 2:03am

This is what wooried me a lot.
E18-600A seems to reach their Xmax below 50hz with single cab

 

I still dont understand to much when doing multiple cabs, but it seems cone displacement reachs till 4.5mm  at 40hz with 2 cabs in parallel

I've done my homework

Cheers



Edited by PoteirosCorp - 07 November 2005 at 2:05am
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