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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: Impedance test the way you done itPosted by unicon on: 10/2/2010
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 unicon wrote:
Roman, 

I suggest that you do add the mass in driver like coins in driver cone(and measure the coin weight too) and do added mass free air impedance test then you can see where it can bring another low resonance .then when it reaches 20% lower the free air you are getting the most out of your driver  .so in loaded horn you can be sure how much foam to add and having the goal impedance you can be almost sure everything is right.
and i suggest not to try more than 20% 


I really dont like the way you try it.
the sound can be heard accidentally so good and when missed cant be implemented again.

I dont wanna disappoint you but the logic used to get the resonances you wanted to hear was basically based on what you liked to hear naw you switched to testing it .
just
Try the free air test and add mass on cone and do another test and then in horn loaded then you have the clue whats happening ...
do the basic testing from start and dw what it guna sound laterz
then we can discuss the room coupling...

best regards
        unicon




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