bad advice on sub connection? - AVS Forum
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Old 12-31-2009, 09:11 PM - Thread Starter
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I have a mirage sub with the typical single LFE input and the high input speaker connections. I was told to get better sound I should connect the left/right speaker mains from the receiver to the sub - along with the left/right speakers themselves to the sub (in the same terminals). And I should also connect the single sub LFE output from the receiver to the LFE input on the sub. This supposedly gives better sound to the speakers, putting them more "in phase". I never heard of this, and the sub manual says not to use the two connections together at the same time. My gut feeling tells me this advice is not correct. Is anyone else out there doing this? And if so, is it a good thing?
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Old 12-31-2009, 09:35 PM
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The first connection is really old school. It is still recommended by Polk, or if you only have a 2 channel receiver. But it does work. The second connection is correct if you have a modern AVR. Connecting both is only recommended for subs that are designed to do that. A few are.

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Old 12-31-2009, 11:27 PM
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When using the 2 sub connections to the one sub, the LFE is the only one that will play the bass. Most subs won't do both.

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Old 01-01-2010, 12:30 AM
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Bad advice. Connect your LFE on your receiver to the LFE on your sub.
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