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Bypassing bulb protection in Yorkville Speakers

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  • Bypassing bulb protection in Yorkville Speakers

    So I was going through my Yorkville E1004's and noticed one of the horns had a crackle in it. So I pulled the bulb and sure enough its got a burnt filament. I need to use these next weekend. I am going to search my ass off to get a replacement in time, but what can I do if I can't get a replacement? I see they are on ebay, but take longer then a week to ship. Talked to my local auto parts chain, and they don't have any.

    Its a 24V 50/55w bulb.

    Can I subsitute something else for one show? Bypass straight across? I am going to be the one running the speakers, and I won't have to be pushing them....

  • #2


    Uploaded with ImageShack.us

    Here is a pic of the bulb, dunno if thats gonna help any.

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    • #3
      If you can't find one in time you can bypass it but just remember you now have no protection on your horn.
      https://www.facebook.com/#!/pages/VP...54678147927641

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      • #4
        2 single element 12 volt auto bulbs 25 watt ran in series maybe.
        DON'T BE ALARMED!!! REMAIN CALM!!!!!!!!!
        There's nothing to see here. It's another day in IDAHO!!!

        My bands Facebook page, https://www.facebook.com/stiff.richard

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        • #5
          So I was going through my Yorkville E1004's and noticed one of the horns had a crackle in it. So I pulled the bulb and sure enough its got a burnt filament.
          Did you try the bulb from the other cab to make sure the driver isn't also cooked? That "crackle" thing sounds a bit foreboding I think? On cabs with a bulb and not a special bulb/fuse it burning out could well mean the driver is toast as it's not designed to burn out to save the driver - it only increases resistance to reduce the power to the driver but not shut it down. The bulb/fuse is designed to do both.

          BTW you don't have to be pushing the cabs to have an "accident", especially if you have a big amp on them .

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          • #6
            Yorkville apparently carries the bulbs http://www.yorkville.com/default.asp?p1=6&p2=121&p_id=77 enter bulb in the description field. I think this is your bulb 3652 24V 55/50W DUPLO-D #R2 P45T BULB $11.00.

            They might be closed today however, it being Victoria Day (that's Queen Victoria).

            If the bulb was damaged.... I guess it could be age/stress but who's to say that you weren't somehow pushing your horns too hard and that's what happened. And I wonder how healthy the other bulb is. RR had a good suggestion re: checking to make sure your horn is okay.

            I've taken out a bulb in a Yorkville Pulse speaker by severely overpowering and having a singer make an oops. In my case the horn didn't crackle it just went silent. I guess they can fail in many ways.

            Anyway, good luck.

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            • #7
              Thanks for the tips... i need to figure this speaker out... I'll be back working on it once the sun goes down!

              I pulled the horn and tested it and it works fine out by itself.

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              • #8
                $11 for a bulb?? Can't you just use a properly rated fuse?

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                • #9
                  You need the bulb's light to make your light show bettr. Also, it's great to be able to see inside the cabinet while doing repairs.
                  Dale Christenson Sound4U A local sound provider serving Oklahoma and surrounding areas. http://sound4u.co Presonus: RM32ai mixer, CS18ai control surface, SL16.4.2 mixer SL328ai speakers X4 Presonus ULT15 speakers x4 JBL: SRX728 Subs x2 Driverack PA2 (for subs)

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                  • #10
                    $11 for a bulb?? Can't you just use a properly rated fuse?
                    A fuse will just pop on an overload - a bulb will temporarily decrease the power to the driver a fair amount when it "lights up". If the amp isn't stoopid big it can protect the driver better than just a fuse.

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                    • #11
                      You can pull the connector leads out of the crossover board and clip them together to bypass the bulb.

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                      • #12
                        Take it to a specialty lighting store in your area. I'm guessing that the bulb isn't manufactured by Yorkville.
                        Here's a tip - if you put out some horrible lo-fi recording that sounds like a Gorilla banging an antelope while using a vacuum with a bad belt drive to suck up a floor full of marbles and silverware - and folks don't line up in mass numbers to hop on your wagon... maybe it ain't us who don't "get it". - THX1138

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                        • #13
                          My GK bass cabs take these bulbs that I can't find anywhere other than thru GK.

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                          • #14
                            My GK bass cabs take these bulbs that I can't find anywhere other than thru GK.


                            Those GKs look like interior car lights to me. I'm sure GK and Yorkville do not have specialty made bulbs for their circuits. My Yorkville NX20s use a single element automotive backup bulb, bayonet base type 1125 IIRC. Matter of fact I got my first NX20 for a bargain because the horn didn't work ;>)

                            Boomerweps

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                            • #15
                              I've looked at auto parts stores and I can't find bulbs with the specific values there.

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