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New Mid-Top *in progress

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Timber_MG View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Timber_MG Quote  Post ReplyReply Direct Link To This Post Topic: New Mid-Top *in progress
    Posted: 02 March 2005 at 1:47pm
Except if the diver paramers are such, that you can still reactance-anull. however I have my doubts whether such a driver exists.

@ JD01, fair enough. I am fairly fluent in three languages, so it is inevitable that something will get mixed up somewhere. Languages aren't exactly my forte.
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Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JD01 Quote  Post ReplyReply Direct Link To This Post Posted: 02 March 2005 at 12:28pm

Hmmm, edit button. Great. When did that happen?

I didn't see it because in all other boards I visit it is near the quote button....

BTW I think you have spoken too much english. Glasses is singular in German: Brille.... :)

Venting the rear chamber of a midhorn often results in loss of max spl capability in the low mids.... I don't know numbers, but it's basically a fact...

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Timber_MG Quote  Post ReplyReply Direct Link To This Post Posted: 26 February 2005 at 2:18pm
@ Poon: I have re-read the thread and you do have a point. If the driver could reactance-anul (in a 140Hz mid-horn like your Porn Horn) with a large rear chamber (like what Bill Fitzmaurice suposedly does with his bass-cabs), then one could look at a hybrid like you suggested. However one would need a really weird (OEM) driver to have both the ability to funciton in a large rear chamber (ignoring resonances for one) and the strong motor/light cone to be any good at loading over a high bandwidth.

One could then look at loading the "port" closer to the throat of the horn and try and reduce its Q. Not something I' try on a mid-horn anytime soon, but one never knows.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pinheiro Quote  Post ReplyReply Direct Link To This Post Posted: 26 February 2005 at 2:04pm

Hi

i was looking at lab sub forun and some one post one plan "pk2115"

but looks like is mising but ok

the plan was one trap box whiad one Bms 4590 on DDS 60x and to 15" delta LF"?"

look very nice for one full range box

one diferent plan is some dual 12 horn and the 4590 whiad low x over  can do some good box to go whiad HD15 and kickass 3 way top

yours Vitor

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Timber_MG Quote  Post ReplyReply Direct Link To This Post Posted: 25 February 2005 at 5:38am
Becasue if you look carefully at the bottom right of your post you'll see an Edit button. Sorry for being so rude.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JD01 Quote  Post ReplyReply Direct Link To This Post Posted: 24 February 2005 at 1:08pm
Ich habe eine! But why's that? Because the WL5 is with 1,4" throat?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Timber_MG Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2005 at 2:36pm
Und du brauchst brillen?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JD01 Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2005 at 9:52am

Oh, that WL5 looks like a clone of the BMS 4510....

 

We need an edit-button!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote JD01 Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2005 at 9:50am
3kHz is too high for LA mid range anyways. A decent driver like the BMS4510 or the Alcons ribbon can go down to at least 1,3kHz. With the right speakers you can get coherent coupling....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pinheiro Quote  Post ReplyReply Direct Link To This Post Posted: 23 February 2005 at 5:44am

Hi

the plan for mid is to do one slot like in the vertec (vertec as two slots on mid and on the JBL model the distence is +-10cm and at 3khz is almost 1 wavelengh)

the info on the WL5 is in http://profesional.beyma.com/ENGLISH/producto.php 

 

yours hope it helps Vitor

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Post Options Post Options   Thanks (0) Thanks(0)   Quote JD01 Quote  Post ReplyReply Direct Link To This Post Posted: 22 February 2005 at 2:54pm
Oh, tell me more about that WL5 thing.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JD01 Quote  Post ReplyReply Direct Link To This Post Posted: 22 February 2005 at 2:51pm

@ Pinheiro: Yeah, mids like that are indeed simple, but they don't work well (I mean the mids will work well, but HF will be affected by the mids cone motion). And the HF of those systems doesn't seem to have a transformer.... Their smaller system is a very stupid invention.... why use a 10" woofer AND a 10" midrange?

 

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