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2x18" MEATGRINDER v2 (done!)

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levyte357 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 6:26pm
Originally posted by Amano Amano wrote:

what do you mean? what device i used or how i adjust it?


"Equalised plot".

Does that mean averaged by software, or you flattened manually?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tommysb Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 6:33pm
Hi Amano,

How did you get on with your measurements? What software did you use?

Regards,
Tom
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 6:46pm
i flattened it manually with dbx 2231

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 6:59pm
Originally posted by tommysb tommysb wrote:

Hi Amano,

How did you get on with your measurements? What software did you use?

Regards,
Tom

thank you very much, Tom!!! ...for you  help/advice...
i used lsplab...


Edited by Amano - 19 September 2009 at 7:33pm
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studio45 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote studio45 Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 7:02pm
so what cuts/boosts did you do on the dbx to get that plot then?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tweeter box Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 7:11pm
Originally posted by kiriiz kiriiz wrote:

It seems like many widespread drivers work good in MGv3
 
anyone tried pd1850 in the plots?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 7:26pm
Originally posted by studio45 studio45 wrote:

so what cuts/boosts did you do on the dbx to get that plot then?

approximately
40Hz +10db
50Hz + 3db
63Hz +1db
100hz-200Hz -4db

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 7:28pm
Originally posted by tweeter box tweeter box wrote:

Originally posted by kiriiz kiriiz wrote:

It seems like many widespread drivers work good in MGv3
 
anyone tried pd1850 in the plots?

I haven't PD1850 but you can put TS parameters to my MG218v2 hornresp model and try...
V3 has ~2.7 compression ratio (same as in WSX).. so drivers must have same parameters...


Edited by Amano - 19 September 2009 at 7:32pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 19 September 2009 at 8:07pm
I see that single MG218 v2 has too small mouth area for double 18" to be excellent choice for outdoors standing... It must be 2 cabs per side But indoors it would be very powerful decision!

Edited by Amano - 19 September 2009 at 8:25pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 20 September 2009 at 12:59am
Originally posted by Amano Amano wrote:

Originally posted by tweeter box tweeter box wrote:

Originally posted by kiriiz kiriiz wrote:

It seems like many widespread drivers work good in MGv3
 
anyone tried pd1850 in the plots?

I haven't PD1850 but you can put TS parameters to my MG218v2 hornresp model and try...
V3 has ~2.7 compression ratio (same as in WSX).. so drivers must have same parameters...


I guess compression ration is Sd/S1 ?

Any numerical equations to match qts/Vas to compression ratio?




Edited by levyte357 - 20 September 2009 at 1:49am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amano Quote  Post ReplyReply Direct Link To This Post Posted: 20 September 2009 at 8:53am
sum(Sd) / S1

Edited by Amano - 20 September 2009 at 12:38pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DjMidKnight Quote  Post ReplyReply Direct Link To This Post Posted: 20 September 2009 at 9:19am
Ok i know that this is slightly off topic but since its allready been brought up in this thread i find its as good a place as any to ask. As per phantom horn length is concerned i absolutely see how the physics of that work when the horn is standing up. however its my position that if you were to say lay that bin on its side or put it up on bricks you loose that additional length of horn. ok so am i pretty close here or am i totaly off point?
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