Announcement
Collapse
No announcement yet.

Repairing a rubbing voice coil on a speaker?

Collapse



X
  • Time
  • Show
Clear All
new posts

  • Repairing a rubbing voice coil on a speaker?

    I recently got a mesa halfback cab with the 2 EV's on the bottom and 2 C90's on the top.

    The speakers weren't retained during shipping and while I was checking it out, I noticed that one of the speakers had a voice coil rubbing. Is there any way to adjust/repair this issue?

    Also I was thinking of adding bolts and nuts to EV's to retain them. Is this a good idea, I might be able to find bolts where I won't have to drill out the wood?

  • #2
    Originally posted by blackba
    I recently got a mesa halfback cab with the 2 EV's on the bottom and 2 C90's on the top.

    The speakers weren't retained during shipping and while I was checking it out, I noticed that one of the speakers had a voice coil rubbing. Is there any way to adjust/repair this issue?

    Also I was thinking of adding bolts and nuts to EV's to retain them. Is this a good idea, I might be able to find bolts where I won't have to drill out the wood?



    Is it one of the EV's rubbing? I hope not! You can't really do much about it these days because a recone will generally cost more than a new speaker. Have you ever seen T nuts? It's basically a nut you hammer into the wood and put a bolt through so you don't have to worry about it. Why are you concerned about that anyway?
    Some cool local bands in my area

    http://www.myspace.com/vorefare
    http://www.myspace.com/rwake
    http://www.myspace.com/****************fire
    http://www.myspace.com/mulattorus
    http://www.myspace.com/nongratametal

    Comment


    • #3
      Originally posted by ss454



      Is it one of the EV's rubbing? I hope not! You can't really do much about it these days because a recone will generally cost more than a new speaker. Have you ever seen T nuts? It's basically a nut you hammer into the wood and put a bolt through so you don't have to worry about it. Why are you concerned about that anyway?


      Yea its an EV that is rubbing. I thought you could take the speaker apart and adjust the VC a bit.

      I have seen the T-Nuts, but they will require drilling. Pretty much all the screws worked their way out of the EV's during shipping, so I figured the holes were pretty stripped.

      Comment


      • #4
        Sometimes if the screws are torqued down to hard or unevenly it can warp the frame causing coil rub.

        Sometimes the suspension gets old & weak & sags causing coil rub. Sometimes one can rotate the speaker 180 deg & relieve rub.

        There are several other reasons but those are the only ones I know have a possible "quick fix". Hope that helps...
        Kirk out

        Comment


        • #5
          Originally posted by blackba


          Yea its an EV that is rubbing. I thought you could take the speaker apart and adjust the VC a bit.

          I have seen the T-Nuts, but they will require drilling. Pretty much all the screws worked their way out of the EV's during shipping, so I figured the holes were pretty stripped.
          No,there's certainly no way to physically adjust a VC.
          tlbonehead@yahoo.com
          www.myspace.com/tbone_tommy
          -For Sale:
          -set of GFS Dream 90s- gold and black pearl- $40 shipped in the cont. US
          -(2) Celestion G12M-70 16 ohm guitar speakers in good condition $40 ea. + shipping.
          - Vox VT15 Valvetronix very clean - $85 + shipping
          - Hughes Kettner Edition Tube 20 (the early Voxy sounding one) Sounds & looks good. $250 + shipping. SOLD
          - Crate Palomino V8 - 10" Celestion - Very clean - on Ebay (sold)

          Comment


          • #6
            Originally posted by Dramius

            Sometimes the suspension gets old & weak & sags causing coil rub. Sometimes one can rotate the speaker 180 deg & relieve rub.


            Worked for me with a greenback that had been in a 4X12 for 30 years. Just invert and off you go. At least try it.
            http://tertl.blogspot.com - The Blog of the Ancient Mariner

            http://photoxon.blogspot.co.uk/ My photography blog

            WTB Emi Ramrod

            Dirty 30 AC30 Crew

            Good deals with Darxcide, MetalheadUK, Farmer Geddon, Lanefair, Chris006, ChrisB, Zoidberg, Uncle Psychosis, Krashpad, Loobs, stevemcb, Prauny, Benecol, Muttz, axis player, Ratae Coritanorum.

            Comment


            • #7
              Originally posted by Dramius
              Sometimes if the screws are torqued down to hard or unevenly it can warp the frame causing coil rub.

              Sometimes the suspension gets old & weak & sags causing coil rub. Sometimes one can rotate the speaker 180 deg & relieve rub.

              There are several other reasons but those are the only ones I know have a possible "quick fix". Hope that helps...


              I have the cab on its back right now and most of the screws are stripped. I will try standing the speaker up and rotating it and see what happens to the cone rubbing.

              I checked into another EV speaker and they appear to be about $200 on ebay

              Comment


              • #8
                Originally posted by blackba


                I have the cab on its back right now and most of the screws are stripped. I will try standing the speaker up and rotating it and see what happens to the cone rubbing.

                I checked into another EV speaker and they appear to be about $200 on ebay
                Geez,you can get one reconed easily for under $100. Decent used 12L's usually go for $75-90.
                tlbonehead@yahoo.com
                www.myspace.com/tbone_tommy
                -For Sale:
                -set of GFS Dream 90s- gold and black pearl- $40 shipped in the cont. US
                -(2) Celestion G12M-70 16 ohm guitar speakers in good condition $40 ea. + shipping.
                - Vox VT15 Valvetronix very clean - $85 + shipping
                - Hughes Kettner Edition Tube 20 (the early Voxy sounding one) Sounds & looks good. $250 + shipping. SOLD
                - Crate Palomino V8 - 10" Celestion - Very clean - on Ebay (sold)

                Comment


                • #9
                  Originally posted by tlbonehead
                  Geez,you can get one reconed easily for under $100. Decent used 12L's usually go for $75-90.


                  I figured the reconing was about $100. If you find a used one for $75-90, let me know....

                  Comment


                  • #10
                    That's why I said "I hope it isn't one of the EV's!" It might be worth it to recone one of them but the others would have been better suited for the trash bin. I LOVE EV's and I almost bought a used Mesa 4x10 guitar cab from my local GC because it had EV's in it. It was an open back and the guy said "This is one of the old Mesa's with the Jensen's in it so it's worth a lot." I looked in teh back and all 4 10's were EV's...they are worth much more than the Jensens and they only wanted $400 and it was very mint.
                    Some cool local bands in my area

                    http://www.myspace.com/vorefare
                    http://www.myspace.com/rwake
                    http://www.myspace.com/****************fire
                    http://www.myspace.com/mulattorus
                    http://www.myspace.com/nongratametal

                    Comment


                    • #11
                      Originally posted by ss454
                      That's why I said "I hope it isn't one of the EV's!" It might be worth it to recone one of them but the others would have been better suited for the trash bin. I LOVE EV's and I almost bought a used Mesa 4x10 guitar cab from my local GC because it had EV's in it. It was an open back and the guy said "This is one of the old Mesa's with the Jensen's in it so it's worth a lot." I looked in teh back and all 4 10's were EV's...they are worth much more than the Jensens and they only wanted $400 and it was very mint.


                      I found one for $120 plus shipping, so I may go with that one.

                      My only experience with EV's is the one that came stock in a marshall 30th anniversary 6101 LE. I didn't really like the EV to be honest in that combo, I thought it sounded better through my 1936 with classic lead 80's. But I am willing to give the EV's another shot, especially since the mesa halfback cab is suppose to sound killer with a mark IV, which I own.

                      Comment


                      • #12
                        EV's are super clean. They really show the flaws in your playing IMO and if your amp doesn't sound that great you will know it...I prefer my amp to do my distorting.
                        Some cool local bands in my area

                        http://www.myspace.com/vorefare
                        http://www.myspace.com/rwake
                        http://www.myspace.com/****************fire
                        http://www.myspace.com/mulattorus
                        http://www.myspace.com/nongratametal

                        Comment


                        • #13
                          Originally posted by tlbonehead
                          No,there's certainly no way to physically adjust a VC.


                          yes there is. there's a how-to on the webervst site somewhere.

                          Comment


                          • #14
                            Originally posted by blackba


                            I found one for $120 plus shipping, so I may go with that one.

                            My only experience with EV's is the one that came stock in a marshall 30th anniversary 6101 LE. I didn't really like the EV to be honest in that combo, I thought it sounded better through my 1936 with classic lead 80's. But I am willing to give the EV's another shot, especially since the mesa halfback cab is suppose to sound killer with a mark IV, which I own.
                            I can see if I have any lying around . I had a deadbeat buyer one one a while back. I can't remember if I ever re-sold it.
                            tlbonehead@yahoo.com
                            www.myspace.com/tbone_tommy
                            -For Sale:
                            -set of GFS Dream 90s- gold and black pearl- $40 shipped in the cont. US
                            -(2) Celestion G12M-70 16 ohm guitar speakers in good condition $40 ea. + shipping.
                            - Vox VT15 Valvetronix very clean - $85 + shipping
                            - Hughes Kettner Edition Tube 20 (the early Voxy sounding one) Sounds & looks good. $250 + shipping. SOLD
                            - Crate Palomino V8 - 10" Celestion - Very clean - on Ebay (sold)

                            Comment


                            • #15
                              Originally posted by tlbonehead
                              I can see if I have any lying around . I had a deadbeat buyer one one a while back. I can't remember if I ever re-sold it.


                              That would be great. I got the cab all put back together and the speaker cone doesn't even move when power is applied. The VC is not open and still reading about 5.5ohms DC like the other good EV speaker.

                              I found a wire not soldered too, but I got that fixed. The cab doesn't sound bad with 3 speakers, but I would like to get the EV moving. The cab still measures about 7.0ohms with all the speakers installed.

                              Comment













                              Working...
                              X