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Discussion Starter #1
What would happen or change if i remove existing phase plug and instead of it cover the hole in membrane with dustcap? Someone already tried this?
 

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I've seen people remove dustcaps and install phase plugs, but why would you want to do the reverse? I guess you would have slightly more cone area, but that little spot in the center has little effect overall... with a 39 mm Voice coil thats approx 12 sq. cm. - it may give you about 1db of additional output I'm thinking, but what negative effects?
 

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Discussion Starter #3
Can you explain me, what would happen with T/S param. ? I'd like to have slightly higher Qts for better use in door of a car. Bu i know that the added mass of dustcap will lower the Fs..
 

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The phase plug helps with the off-axis response too... i wouldnt really worry about removing it from that driver if you're concerned with bass response...
 

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Discussion Starter #5
Do you think that would change T/S parameters? I guess so, but i don't know in wich direction...what would happen with Qts, Fs, Vas etc. ?
 
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