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<blockquote data-quote="ciaonzo" data-source="post: 7177145" data-attributes="member: 607015">This 3 ohm topic always irks me.People. When you buy a driver that has a nominal 4 ohm value, it almost always measures somewhere around 3 ohms. Likewise, when you buy a driver that has a nominal value of 2 ohms, it can measure as low 1.2-1.4 ohms. What has happened is that some manufacturers have started publishing the actual Re (DC resistance of the coil at rest) as the driver&#039;s nominal value. Measure the coils on an Eclipse Ti that are spec&#039;d as a dual 3 ohm setup and you&#039;ll get a reading of 3.1-3.2 ohms. It should&#039;ve been rated as a dual 4 ohm driver from day one.The point is, any time you see a specification of 3 ohms for a voice coil, just treat it exactly as you would a 4 ohm coil. It will be just fine to run it on an amplifier that&#039;s rated to run a 4 ohm load while bridged. That&#039;s exactly what the amplifier is expecting to &quot;see&quot; - an actual Re of around 3 ohms. It has ALWAYS been this way, it&#039;s just that marketing departments are fucking things up.Some links to drive this point home. Note the nominal impedance of each driver and then the corresponding Re value.<a href="https://www.madisound.com/store/product_info.php?cPath=45_338_340&amp;amp;products_id=8637" target="_blank">https://www.madisound.com/store/product_info.php?cPath=45_338_340&amp;amp;products_id=8637</a><a href="https://www.madisound.com/store/product_info.php?cPath=45_338_340&amp;amp;products_id=8682" target="_blank">https://www.madisound.com/store/product_info.php?cPath=45_338_340&amp;amp;products_id=8682</a><a href="https://www.madisound.com/store/product_info.php?cPath=45_338_340&amp;amp;products_id=8535" target="_blank">https://www.madisound.com/store/product_info.php?cPath=45_338_340&amp;amp;products_id=8535</a></blockquote>

[QUOTE="ciaonzo, post: 7177145, member: 607015"] This 3 ohm topic always irks me. People. When you buy a driver that has a nominal 4 ohm value, it almost always measures somewhere around 3 ohms. Likewise, when you buy a driver that has a nominal value of 2 ohms, it can measure as low 1.2-1.4 ohms. What has happened is that some manufacturers have started publishing the actual Re (DC resistance of the coil at rest) as the driver's nominal value. Measure the coils on an Eclipse Ti that are spec'd as a dual 3 ohm setup and you'll get a reading of 3.1-3.2 ohms. It should've been rated as a dual 4 ohm driver from day one. The point is, any time you see a specification of 3 ohms for a voice coil, just treat it exactly as you would a 4 ohm coil. It will be just fine to run it on an amplifier that's rated to run a 4 ohm load while bridged. That's exactly what the amplifier is expecting to "see" - an actual Re of around 3 ohms. It has ALWAYS been this way, it's just that marketing departments are [COLOR=black]f[/COLOR]ucking things up. Some links to drive this point home. Note the nominal impedance of each driver and then the corresponding Re value. [URL="https://www.madisound.com/store/product_info.php?cPath=45_338_340&products_id=8637"]https://www.madisound.com/store/product_info.php?cPath=45_338_340&products_id=8637[/URL] [URL="https://www.madisound.com/store/product_info.php?cPath=45_338_340&products_id=8682"]https://www.madisound.com/store/product_info.php?cPath=45_338_340&products_id=8682[/URL] [URL="https://www.madisound.com/store/product_info.php?cPath=45_338_340&products_id=8535"]https://www.madisound.com/store/product_info.php?cPath=45_338_340&products_id=8535[/URL] [/QUOTE]

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