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Old 20th October 2009, 01:10 AM   #1
Defo is offline Defo  Norway
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Default Bms 4555

The BMS 4555 is specced to go as low as 500hz, but the graph shows otherwise. Is it highpassed maybe?

If so, it would be great if anyone knew of an other 1,5" compression driver capable to 500hz.

Thanks.
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Old 20th October 2009, 05:45 AM   #2
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http://www.jblpro.com/pub/components/2451.pdf

2452h-sl - Lansing Heritage Forums

Also, 2452H, others....
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Old 20th October 2009, 10:15 AM   #3
Defo is offline Defo  Norway
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Quote:
Originally Posted by ZilchLab View Post
Except they are hella expensive...
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Old 20th October 2009, 11:50 AM   #4
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Default 4555


u can use it only higher then 1kz (with 4th order filter)
500hz will blow 4555

cheers
ravirat4u
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Old 20th October 2009, 03:06 PM   #5
tinitus is offline tinitus  Europe
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Wouldnt that very much depend on SPL ?

My bet is 800hz/12db would be ok ?

Right now, this BMS would be my choise too
Partly because its really just a 1" driver(44mm diaphragm) with 1.5"/36mm exit
One of a kind, at least I dont know any other
I suppose I would use 20watt amp like F5, or maybe small 10watt tubeamp like SimpleSE, or newSimplePP

Last edited by tinitus; 20th October 2009 at 03:13 PM.
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Old 20th October 2009, 09:04 PM   #6
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Quote:
Originally Posted by Defo View Post
Except they are hella expensive...
Not to the resourceful DIYer:
Attached Images
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File Type: jpg Diaphragms.jpg (42.7 KB, 191 views)
File Type: jpg Phase Plugs.jpg (50.4 KB, 189 views)
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Old 21st October 2009, 11:23 AM   #7
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One idea is to have the 200 euro RCF N850 (3-inch Diaphragm, 2.0-inch Exit Throat) paying from ~700Hz to 3K with a supertweeter out of main range.
http://www.toutlehautparleur.com/mot...850-p-737.html

Last edited by Inductor; 21st October 2009 at 11:24 AM. Reason: link
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Old 17th May 2010, 02:48 AM   #8
tinitus is offline tinitus  Europe
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Hey, seen the new 1.4" BMS ?
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