Question about Jensen CD400M CD Player

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Speakers Crack at mid to high volume (anything over level 20)

Installed a new marine head unit in my boat, Jensen MSR 3007, and 2 "cheaper" speakers. I then changed to Alpine speakers and regardless both crackle when I turn up the volume. The only thing I have found to fix the problem is to turn the fade all the way to the front speakers as I only have 2 speakers installed in my boat, vs the 4 outputs on the head unit. the 2 rear speakers (4 wires) are not connected to anything, and I simply bundled with cable tie out of the way. Is this normal to have to turn the fade all the way up? My thoughts are that this is some sort of power output and insufficient power to the 2 speakers, which seems implausbile with the original cheaper speakers. Any thoughts? Will I damage my unit? Thanks.

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  • hodgson_82 Jul 30, 2009

    Thanks. I actually connected and reconnected the speaker wires first thinking I had a loose connection, and all 4 wires are very solidly crimped. The cables were pre-run by the mfg through plastic conduit, thus I am fairly confident that they are not pinched or shorted, though I cannot get to all of them to verify as they run under my floor of the boat. Any other thoughts?

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Make sure speakers are connected properly to individual speaker outputs from radio .Also make sure speaker cables going to speakers are not pinched or shorted anywhere

Posted on Jul 30, 2009

  • crispin melchor Aug 05, 2009

    the only thing at this point is that make sure since you only have two speakers connected .Make sure there is one on Gray and grey/black and White /whiteblack (front speakers) or Green/greenblack and violet/violet black (rear speakers) . make sure only to use front speakers only or rear speakers only but not one front and one rear.

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