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<blockquote data-quote="Jimi77" data-source="post: 8877537" data-attributes="member: 673702">Nobody is desperately trying to justify anything.&nbsp; Box rise is &quot;common knowledge.&quot;&nbsp; I can&#039;t even count how many times I&#039;ve plotted different response and impedance curves for different enclosures - probably into the thousands.&nbsp; The bottom axis is your standard logarithmic frequency response on the x-axis,&nbsp; TBH, I half think you&#039;re trolling; I have a hard time believing somebody who has been the hobby 10 years doesn&#039;t recognize what the x-axis is despite the missing label.&nbsp; I also have a hard time believing somebody who has been in the hobby for 10 years has never used software to analyze how different enclosures affect response and hasn&#039;t seen these graphs before.&nbsp; Impedance changes because the coil is in magnetic gap and attached to a suspension, so the coil is no longer a simple inductor that responds only to changes in frequency.&nbsp; Graph generated in speakerboxlite.&nbsp; At 41hz all 4 enclosures have a different impedance.&nbsp; [ATTACH=full]59111[/ATTACH]</blockquote>

[QUOTE="Jimi77, post: 8877537, member: 673702"] Nobody is desperately trying to justify anything. Box rise is "common knowledge." I can't even count how many times I've plotted different response and impedance curves for different enclosures - probably into the thousands. The bottom axis is your standard logarithmic frequency response on the x-axis, TBH, I half think you're trolling; I have a hard time believing somebody who has been the hobby 10 years doesn't recognize what the x-axis is despite the missing label. I also have a hard time believing somebody who has been in the hobby for 10 years has never used software to analyze how different enclosures affect response and hasn't seen these graphs before. Impedance changes because the coil is in magnetic gap and attached to a suspension, so the coil is no longer a simple inductor that responds only to changes in frequency. Graph generated in speakerboxlite. At 41hz all 4 enclosures have a different impedance. [ATTACH type="full"]59111[/ATTACH] [/QUOTE]

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