MM651UM Impedance/Hookup
The subject speakers are listed at 4 ohms. I hooked them up in parallel to a P400x2 Fosgate amp that is stable at 2 ohms. Watts are matched at those levels and hookup. Gain adjusted just under clip at full head unit output.
However, I notice the back of the speakers indicates 3 ohms and have read elsewhere they are actually 2.7 ohms each. In a parallel hookup that may not be great for the amp. Please provide actual impedance for these speakers and ideas/concerns with the indicated parallel hookup.
Thanks,
John
However, I notice the back of the speakers indicates 3 ohms and have read elsewhere they are actually 2.7 ohms each. In a parallel hookup that may not be great for the amp. Please provide actual impedance for these speakers and ideas/concerns with the indicated parallel hookup.
Thanks,
John
Comments
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Hello John,
Welcome to Polk's forum. Let me contact Polk for an explanation on that.
Regards, Ken -
It is possible you have the standard MM651 instead of the "UM" version. If so, the impedance is 2.7 ohms and a parallel connection is not recommended. If you can provide the serial number the speaker's identity can be confirmed.
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Thanks for looking into this.
AA265208390 -
I'll let you know what they say.
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Polk has confirmed that you have a "UM" version which is 4 ohm impedance.
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Excellent, thank you.
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