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Problems with new HU

Discussion in 'In-Car Entertainment' started by Jay, Oct 25, 2008.

  1. Jay
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    Jay Member

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    [Oct 25, 2008]
    Just replaced my HU with an Alpine 9884R. This is supposed to have 4v pre outs, same as my old unit, however the sub seems very quiet compared to when I had the old unit in.

    also the sub seems to be louder at lower volume than it does when its fully turned up. I'm due a battery replacement soon so wondering if this due to the amp not receiving enough power.

    I was under the impression that due to the preouts being the same voltage I could leave the gains on my amp at the same level as they were previously or am I wrong?
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