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PAC SN1 Filter ????

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Old Apr 14, 2008 | 09:53 PM
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Default PAC SN1 Filter ????

I am installing a 3sixty.2, mostly to give me the ability to bandpass the 6.5" midbass, but I also like the time correction and equalizer as well as some other features. Now to my main question...
When I pulled the stock HU, I see that there are two PAC SNI Filters that the installer put in. They are connected to the line level outputs that were soldered into the wires of the HU, then the RCAs that go to the amps are connected to the SN1 Filters.
Are these filters something I need ?
Should I leave them, or remove them?

Last edited by CraigE; May 21, 2009 at 07:52 PM.
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Old Apr 14, 2008 | 10:59 PM
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odds are you had alt whine so he put them in. with the 3sixty you may not need them but its hard to say
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Old Apr 16, 2008 | 01:55 PM
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I talked with the installer and they do it on all installs. They assured me that it would not affect the quality of the signal.
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Old Apr 16, 2008 | 02:07 PM
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it shouldnt effect quality its only gonna eliminate any noise that might be there
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Old May 21, 2009 | 07:50 PM
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Rich, at Auto Essentials in Thousand Oaks, CA advised me to use the PAC SNI-1 filters only if there is noise, such as alternator whine, and that they do affect the signal.

I removed them, and there is no noise, but there is a dramatic increase in bass response. The sub and midbass drivers really came alive.

I would suggest to anyone, that you try your system without the filters. And if you do have noise, use them, as it may be the lesser of two evils.
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