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<blockquote data-quote="Ivan Beaver" data-source="post: 64383" data-attributes="member: 30"><p>Re: Something doesn't look right here...</p><p></p><p></p><p>Swapping a crossover designed for a particular product with a genaric one is not generally a good idea.</p><p></p><p>The best a general purpose crossover can do is to "assume" that the amplitude and impedance of the drivers is "perfect". Of which they are not-and in many cases not even close.</p><p></p><p>So the response will often be quite different than what you hope it would be.</p><p></p><p>I would use Johns recommendation and just replace the values-EXCEPT I would change the power capacity of the resistor(s). Whatever the ohmage value is-I would double it-and use twice as many as origional.</p><p></p><p>Keep the wattage the same (probably 25 watts). I don't know hte values-but lets assume there were 2 10 ohm resistors-each 25 watts. That gives a total impedance of 5 ohms and 50 watts capacity. So if you use 4x20 ohms (25 watts) you will still have the same 5 ohms-but now have a 100 watt capacity. </p><p></p><p>Now for those wanting to get "picky", I agree that the actual capacity of the 4 resistors-in the same physical location-will not be as high as 100 watts-due to the fact that they are close to each other and will be "sharing" the heat. But it WILL be quite a bit higher than previously.</p><p></p><p>This will keep them running cooler. And increase the voltage rating on the cap. 400V should be fine for a monitor.</p><p></p><p>I second the use of silicon (as John said)-I don't know about Goop. Silicone is very stable under very high temps-just stick a solidering iron into a hardened "blob" and see what happens. Essentially nothing.</p></blockquote><p></p>
[QUOTE="Ivan Beaver, post: 64383, member: 30"] Re: Something doesn't look right here... Swapping a crossover designed for a particular product with a genaric one is not generally a good idea. The best a general purpose crossover can do is to "assume" that the amplitude and impedance of the drivers is "perfect". Of which they are not-and in many cases not even close. So the response will often be quite different than what you hope it would be. I would use Johns recommendation and just replace the values-EXCEPT I would change the power capacity of the resistor(s). Whatever the ohmage value is-I would double it-and use twice as many as origional. Keep the wattage the same (probably 25 watts). I don't know hte values-but lets assume there were 2 10 ohm resistors-each 25 watts. That gives a total impedance of 5 ohms and 50 watts capacity. So if you use 4x20 ohms (25 watts) you will still have the same 5 ohms-but now have a 100 watt capacity. Now for those wanting to get "picky", I agree that the actual capacity of the 4 resistors-in the same physical location-will not be as high as 100 watts-due to the fact that they are close to each other and will be "sharing" the heat. But it WILL be quite a bit higher than previously. This will keep them running cooler. And increase the voltage rating on the cap. 400V should be fine for a monitor. I second the use of silicon (as John said)-I don't know about Goop. Silicone is very stable under very high temps-just stick a solidering iron into a hardened "blob" and see what happens. Essentially nothing. [/QUOTE]
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