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??
recone specs on gauss woofers
Quote:
Originally Posted by
Earl K
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.