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<blockquote data-quote="Kyle_Keating" data-source="post: 5500175" data-attributes="member: 582385">I took a look......<a href="http://zaphaudio.com/temp.html" target="_blank">http://zaphaudio.com/temp.html</a>So here is a problem....... he put 5.9 ohms for a 110 degrees and 0 degrees... that&#039;s not possible unless that voice coil was not aluminum or copper or the speaker was not the&nbsp; temperature of the room.What is happening is really not *that* interesting, all that is occurring is the glues (for example) in the spiders are freezing up and bonding which in turn raises the Fs which increases the Q.the SPL should be increase too, but the guy did not remeasure the voice coil so there is an error on that number.EDIT. the Dcr at 0 should be ~5.4 ohms&nbsp; and the Dcr at 110 should be ~6.4 ohms which will reflect about a 9% BL shift.... not large but not negligible. The real changes are then obviously with the softparts and softpart chemical compliance changing with temperature.blah..... anyway, who ****ing cares.</blockquote>

[QUOTE="Kyle_Keating, post: 5500175, member: 582385"] I took a look...... [URL="http://zaphaudio.com/temp.html"]http://zaphaudio.com/temp.html[/URL] So here is a problem....... he put 5.9 ohms for a 110 degrees and 0 degrees... that's not possible unless that voice coil was not aluminum or copper or the speaker was not the temperature of the room. What is happening is really not *that* interesting, all that is occurring is the glues (for example) in the spiders are freezing up and bonding which in turn raises the Fs which increases the Q. the SPL should be increase too, but the guy did not remeasure the voice coil so there is an error on that number. EDIT. the Dcr at 0 should be ~5.4 ohms and the Dcr at 110 should be ~6.4 ohms which will reflect about a 9% BL shift.... not large but not negligible. The real changes are then obviously with the softparts and softpart chemical compliance changing with temperature. blah..... anyway, who ****ing cares. [/QUOTE]

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