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Sub not fireing, amp seems fine. Whats wrong?

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    #1

    Sub not fireing, amp seems fine. Whats wrong?

    Putting my sub woofer back in the car today, but i cant get it too fire. Checked all my connections and used a mulit tester to see if there was power getting to the amp. Power is getting to the amp fine, and the woofer coil read at 4.2 ohms.
    Looked at the manuals and couldn't figure it out.
    tryed two diferent input/output setups. Rear out and the sub cord things.

    Its only one 10in sub.

    Here are my head unit and amp manuals in online pdf format if it will help.

    Head unit
    http://esupport.sony.com/US/perl/mod...CDXF5700&LOC=3

    Amp
    http://esupport.sony.com/US/perl/mod...4Z&region_id=1

    Did a search and only found one thread related to the problem, but it was posted in January, and never really revised, so i thought i'd ask again for myself.
    Tags: None
    #2
    And your sure the speaker outputs on the amp work? Is the amp getting a signal from the head unit? bad rca's? is the gain on the amp turned up?

    Comment

      #3
      Is there a way to test the speaker outputs with the multi tester. what setting on the multi tester? ill try an rca wire change

      Comment

        #4
        judging by your manual for your deck you have a sub output RCA set. Run your RCAs from that to the rear inputs of your amp. If your running just the rear channels.

        Make sure your gain is set no higher than 3/4 and then adjust your settings to your liking.
        Last edited by JDMCB3Si; 09-13-2009, 01:51 PM.
        "you can catch me swoopin 4G coupin switchin lanes" haha haha.


        1993 SE coupe drag car ahoy!

        1992 EX coupe 5 spd **sold **

        1991 LX sedan 5 spd **tore the tranny apart**
        sold to: jakfrostwhite,F22Cb7Rid3r, and many others
        Did work for: jhoff_cb7
        Traded with: 1990AccordEX,pr3pg4lyfe

        Comment

          #5
          Hook your multimeter to the speaker out puts and see if there is any voltage. Not 100% sure on that.

          Comment

            #6
            you dont use a voltage setting you use a wattage setting. most multi meters dont have that setting though.
            "you can catch me swoopin 4G coupin switchin lanes" haha haha.


            1993 SE coupe drag car ahoy!

            1992 EX coupe 5 spd **sold **

            1991 LX sedan 5 spd **tore the tranny apart**
            sold to: jakfrostwhite,F22Cb7Rid3r, and many others
            Did work for: jhoff_cb7
            Traded with: 1990AccordEX,pr3pg4lyfe

            Comment

              #7
              hook yo sub to you rear 6x9 wires if it works, its your amp, get someone with expieriance to help you run you rca jacks, and make sure your amp isnt in protect mode

              Comment

                #8
                Got it worked out. essentually i saw something in the manual about the protect light. seems that if the remote wire isn't getting enough juice it wont turn on the amp. got that wired into the harness on a wire labeled REM 3a max or something like that instead of the wire i had it on. sub works, now got to work with the setting to actuall turn down the levels on the sub. over powering the mid range tones, like everything is bumping loud.

                Comment

                  #9
                  Originally posted by JDMCB3Si View Post
                  you dont use a voltage setting you use a wattage setting. most multi meters dont have that setting though.
                  You can use the voltage setting but it won't give a consistent reading with music. You would have to play sine waves for that.

                  YouTube Clicky!!

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