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Message: <blockquote data-quote="Chevyaudio" data-source="post: 1578022" data-attributes="member: 559770"><p>On alpine decks the sub level should always be on 15. If it is set lower, you wont get your max preout voltage...Sounds to me like that shop improperly set the gains on your amp....Now you need to get yourself a DMM and read the gain setting tutorial, this time set the gains with the Sub Level control at 15.  Either that or your could take it back to the shop and get them to reset it.</p></blockquote><p></p>

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