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<blockquote data-quote="Cruisin" data-source="post: 811614" data-attributes="member: 560327">Just installed an Alpine head unit.....9825Have four door speakers (Eclipse)Bought an Alpine MRP-350 sub-amp, using RCAs hooked up to head unit.Have a dual-voice coil Alpine 12&quot; Sub 1242D....Head unit works fine......so did amp/sub for about 5 minutes....then no sound from sub. Still have power light on. Wired the sub according to diagram....Took it to Best Buy guy, only thing he could figure was my amp is already bridged, so he reconfigured the wires, worked....for about 30 minutes after I left....Figured the amp could be bad, traded for another today, same thing. Bypassed that sub and tried another, no juice either....Still have light....GRRRR help!!! //content.invisioncic.com/y282845/emoticons/mad.gif.c18f003ab0ef8a0d9c27ca78d77a6392.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif</blockquote>

[QUOTE="Cruisin, post: 811614, member: 560327"] Just installed an Alpine head unit.....9825 Have four door speakers (Eclipse) Bought an Alpine MRP-350 sub-amp, using RCAs hooked up to head unit. Have a dual-voice coil Alpine 12" Sub 1242D.... Head unit works fine......so did amp/sub for about 5 minutes....then no sound from sub. Still have power light on. Wired the sub according to diagram.... Took it to Best Buy guy, only thing he could figure was my amp is already bridged, so he reconfigured the wires, worked....for about 30 minutes after I left.... Figured the amp could be bad, traded for another today, same thing. Bypassed that sub and tried another, no juice either....Still have light.... GRRRR help!!! [IMG]//content.invisioncic.com/y282845/emoticons/mad.gif.c18f003ab0ef8a0d9c27ca78d77a6392.gif[/IMG][IMG]//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif[/IMG] [/QUOTE]

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