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<blockquote data-quote="noname" data-source="post: 8276427" data-attributes="member: 661590">I don&#039;t want to derail this thread - with that said I will give a little insight.These are being using in a home setup with pro audio amps. Everything is done &#039;right&#039; for the situation at hand.I&#039;m pretty sure the driver/enclosure combo is sending the amp a decent impedance dip causing it to hit protect mode for a couple seconds. It&#039;s not heat related. Most nominal 2 ohm drivers should not be dipping so low it causes a problem for a *solid* rated 2 ohm stable amplifier, but of course there are exceptions with drivers.Also to add is the DCR of the SP4 is a bit lower than the other drivers I&#039;ve had on the system, or plotted in winisd.The SP4 18 plots lower than a few other drivers I have in winisd when viewing the impedance chart. With that said there are so many variables it&#039;s impossible to hang the hat on a winisd plot.So- hopefully that cures the curiosity and we can continue to share experiences of d-1 sp4s being wired in series and hammered on amps that are only stable down to 2 ohms. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</blockquote>

[QUOTE="noname, post: 8276427, member: 661590"] I don't want to derail this thread - with that said I will give a little insight. These are being using in a home setup with pro audio amps. Everything is done 'right' for the situation at hand. I'm pretty sure the driver/enclosure combo is sending the amp a decent impedance dip causing it to hit protect mode for a couple seconds. It's not heat related. Most nominal 2 ohm drivers should not be dipping so low it causes a problem for a *solid* rated 2 ohm stable amplifier, but of course there are exceptions with drivers. Also to add is the DCR of the SP4 is a bit lower than the other drivers I've had on the system, or plotted in winisd. The SP4 18 plots lower than a few other drivers I have in winisd when viewing the impedance chart. With that said there are so many variables it's impossible to hang the hat on a winisd plot. So- hopefully that cures the curiosity and we can continue to share experiences of d-1 sp4s being wired in series and hammered on amps that are only stable down to 2 ohms. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] [/QUOTE]

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