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Thread: Cetec Gauss 4583A Repair manuals, pdf's?

  1. #1
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    Cool Cetec Gauss 4583A Repair manuals, pdf's?

    Hi all I have 2 of the 4583A's I found the specs .pdf for them which helped me get the proper X-over and Sine Wave frequencys to test them. I found they don't really do much under 40HZ. I am looking for more technical/Repair/disassembly info if available.
    I am looking at replacing the Surrounds with foam rather then the stiff tar paper stuff it has.
    I also have been missing the dust caps for a few years though they were not in use I need to know if there is a way to remove the motor (magnet) and clean out all the goo that is probably collected in the space between teh Voice coil and the center thingy with the 5/8's looking bolt in it. Is that what holds the 100 pound magnet on?
    I have seen a boat load of 15" drivers with 80 oz or 200 oz magnets an dthey act like those are huge.
    so what is the magnet on these 480 oz, 720 oz? I can weigh it if I can figure out how to diss assemble and clean without ruining it. I do plan to replace the dust caps and surrounds like mentioned so I am not worried about ruining the surrounds. I do want it spotlessly clean inside before I install a new dust cap though.
    I have read that the screen type dust caps are better for these due to a cooling issue??
    does that allow air to cool the coil if it can get in from the front through the cap??

  2. #2
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    I think your best to turn your 4583A(s) into 4583F(s) is to buy some aftermarket recone kits from Power & Light Productions .
    ( Though I'll admit this is just a guess on my part )

    They should give you some guidance on how to correctly install their recone kit .

    Before buying, I'd ask them at least the following questions :



    • (1) What are the TS parameters of a speaker reconed with their kit ? ( then compare to the original T-S parameters to make sure they are close )

    • (2) Is the winding depth of their kit the same as the original ( & just what is that winding depth ) ?
    <> cheers
    Attached Images Attached Images   

  3. #3
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    That amazing I just found them also and was sending them a message about the kits. i believe he first asked if I had 4 or 8 ohm speakers and i never thought the 4583A came other then 8 ohm.
    I also am looking for the dust caps and the largest I can find are 4 1/8 . my voice coil is that size i think I need 4 3/4" any ideas?? or can I run without any?

  4. #4
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    Quote Originally Posted by spudler View Post
    ,,,,snip ,,,,,
    I also am looking for the dust caps and the largest I can find are 4 1/8 . my voice coil is that size i think I need 4 3/4" any ideas?? or can I run without any?
    You need dust caps for protection against bits of crap getting into the gap / grinding against the coil and eventually causing a failure .

    So no, you don't want to run without dust-caps .

    I suspect what they provide as stock, will fit / but if you desire larger , they most likely can supply over-size dust-caps .

    <. cheers

  5. #5
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    I figured as much about the dust grinding etc. that is another reason I need some info on these as they sat for 5 years without any caps so there has to be a bout load of crud in there I would like to wipe out or however I can get in there before I cap it off.

  6. #6
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    Quote Originally Posted by spudler View Post
    I figured as much about the dust grinding etc. that is another reason I need some info on these as they sat for 5 years without any caps so there has to be a bout load of crud in there I would like to wipe out or however I can get in there before I cap it off.
    Here read this ; Speaker Recone Guide .

    <> cheers

  7. #7
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    Thanks. looks like i will have to wait till I get a recone kit to do much. I have some canned air for the compters etc. i will use that to do what I can I doubt I could fit any tape between the coil and the magnet so I wont even try ..
    my luck there would be a spot where the coil wire is not covered in the plastic like it is supposed to be and it would catch and ruin it.

  8. #8
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    recone specs on gauss woofers

    Quote Originally Posted by Earl K View Post
    I think your best to turn your 4583A(s) into 4583F(s) is to buy some aftermarket recone kits from Power & Light Productions .
    ( Though I'll admit this is just a guess on my part )

    They should give you some guidance on how to correctly install their recone kit .

    Before buying, I'd ask them at least the following questions :



    • (1) What are the TS parameters of a speaker reconed with their kit ? ( then compare to the original T-S parameters to make sure they are close )


    • (2) Is the winding depth of their kit the same as the original ( & just what is that winding depth ) ?

    <> cheers
    Our kits recreate the specs of the XR series woofers (19mm winding depth on the 2831/4283/4543/4583/4843/4883A). The ONLY change in the XR series compared to the older ones is that the spider system was improved. The spiders in the older speakers were designed to "lock up" thereby preventing the woofers from "bottoming out" and sustaining mechanical damage. the 6mm Xmax specification in the XXX3 series was where the spider actually maxed out. Consequently distortion went through the roof. The XR series spiders permitted one way excursion beyond 6mm vastly lowering distortion due to mechanical limitations. The "built in" excursion capability of the frame then became the limiting factor. Gauss frames across the entire line permitted only about 19mm or 3/4 inch of movement range. When operated within that range we've found power handling has actually gone up to approximately 500W/RMS, so, there is where we'll rate them. Our test amplifier is capable of far exceeding 2 killowatts on undistorted peaks (RMS + 6db crest factor) which Gauss specified their woofers had to handle to achieve their listed power rating. Their power test ran for 10 minutes, so, that's how we do it.

  9. #9
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    Quote Originally Posted by spudler View Post
    That amazing I just found them also and was sending them a message about the kits. i believe he first asked if I had 4 or 8 ohm speakers and i never thought the 4583A came other then 8 ohm.
    I also am looking for the dust caps and the largest I can find are 4 1/8 . my voice coil is that size i think I need 4 3/4" any ideas?? or can I run without any?

    How bout some pictures?

  10. #10
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    Pictures?? there in the cabs so you wont be able to see much. maybe I will remove them and get some pics for you all.

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    Dustcaps

    Quote Originally Posted by spudler View Post
    That amazing I just found them also and was sending them a message about the kits. i believe he first asked if I had 4 or 8 ohm speakers and i never thought the 4583A came other then 8 ohm.
    I also am looking for the dust caps and the largest I can find are 4 1/8 . my voice coil is that size i think I need 4 3/4" any ideas?? or can I run without any?
    We can supply you with various sizes of dustcaps. Something close to the size of the voice coil itself is best. 4 3/4" is a good size to go with. If you get a dustcap from someone else use a hard paper not a felt breather cap. The felt cap will not allow the voice to cool properly.

  12. #12
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    Ok thanks. If I remember correctly the original ones were a plastic of some sort because they used to rattle/crackle because they were cracked and it was a horrible sound they made.

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    Great to find this forum, as I recently acquired several folded horns: two Earthquakes, with CV-188EB's in them, two Peavey CH-4C high-freq. horns with Peavey 22A drivers, one folded horn with a Gauss 4583A 15" in it, and 5 folded horn cabs, unloaded. All the drivers are working, and although they seem to be rather inefficient (tested them with a QSC USA 1310, 650 watts @ 4 ohms, power amp-) they all play well.

    I don't doubt you folks know much more about these speakers (and speakers in general) than I.

    I have no desire to re-cone them, but it's good to know re-cone kits are available. If you could answer some questions, I would be grateful:

    Where can I find a speaker to match the Gauss? Are there other brands that are "close enough?" I will be using them for live sound.

    What's with the apparent in-efficiency? What can I do about that? From what I read here and elsewhere, I am already pushing all the drivers harder than I should be (I was brief) so more power wouldn't do, would it?

    I am told in another forum that the more folded horns, the better. Really? Should I put drivers in the rest of 'em, or should I sell the lot and get fewer, more modern cabs/drivers?

    If the answer is to sell 'em- anybody want some?

  14. #14
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    Not sure about folded cabs and such. I have 2 of the 4583A's I have one in each old soundtech PA cabs. They were 2 way cabs but I realized I was weak in mid frequency response so I added a 5 1/4" Mid driver.
    As far as the 4583A being inefficient I am not sure as to why it would be unless it is blown as I was only running a Peavey CS-800 stereo one channel to each of the 15" speakers and they did fine. I was only able to push a little over 200 watts max since they are 8 ohm speakers addad another CS-800 and bridged each amp per speaker and they realley woke up.
    I have a spec sheet for the Cetec Gauss, I will attach it for you.
    as far as finding another 4583A It may take along time and I bet the price would shock you.
    I have only seen one ever for sale since I started looking a little over a year ago and they were asking $500 for it.
    Attached Images Attached Images

  15. #15
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    Ronald57, Dustcaps?
    I seen yo mentioned to get hard paper ones so the voice coil could cool properly? does air somehow get through the paper or are your referring to the felt being like insulation and holding heat in better then thin paper would?
    the reason I ask is when I installed my Dustcaps I also bought some of the Wet look speaker cone covering and protector and I put it on the cones real well and I did the dust caps to protect them and to make them match the cones.
    I would of done both sides had I been able to remove teh cones without destroying the speakers, I suppose when I recone them I will apply to cones before I install them.

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