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Bennett: Anything to say about the 21IPAL?
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<blockquote data-quote="Josh Ricci" data-source="post: 64648" data-attributes="member: 1594"><p>Re: Bennett: Anything to say about the 21IPAL?</p><p></p><p>It looks like despite the very low RE the extremely high BL^2/RE of this driver which will result in a big back EMF, a very large impedance hump near resonance and a very wide base of higher impedance so that the actual working impedance should be more manageable than you would think. Efficiency is very high. Depending on your enclosure used it should shift the bulk of the impedance upwards in frequency quite a bit too. Judging from the already extremely good thermal power handling on my 21sw152-4's this driver's long term thermal management capabilities should be truly epic indeed. It has 60% more vc mass. </p><p></p><p></p><p></p><p> Bennett I sent you a pm with a few questions about these woofers. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~:smile:</p></blockquote><p></p>
[QUOTE="Josh Ricci, post: 64648, member: 1594"] Re: Bennett: Anything to say about the 21IPAL? It looks like despite the very low RE the extremely high BL^2/RE of this driver which will result in a big back EMF, a very large impedance hump near resonance and a very wide base of higher impedance so that the actual working impedance should be more manageable than you would think. Efficiency is very high. Depending on your enclosure used it should shift the bulk of the impedance upwards in frequency quite a bit too. Judging from the already extremely good thermal power handling on my 21sw152-4's this driver's long term thermal management capabilities should be truly epic indeed. It has 60% more vc mass. Bennett I sent you a pm with a few questions about these woofers. :)~:-)~:smile: [/QUOTE]
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