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You can try it on this one above to see what I mean. When ever you see a small red triangle like this one in a cell just move you cursor over it and a help box will appear. However, with this new version I have included pop-up text HELP boxes that give a brief explanation to what the contents of a cell mean or what the calculator is looking for. It was assumed that the user knew what the calculation was for and what the results meant. In the first version certain assumptions were made of the user primarily that the user already understood basic crossover circuits, orders, and general circuit topologies. I picture this as much as a teaching tool as I do a design tool, and is intended for primarily for the beginner or novice builder, however, some of it's functions may be beneficial even for the experienced designer. Probably the most powerful aspect of this spreadsheet is the opportunity it offers for a beginner to learn more about crossover circuits and how they operate. In many cases, if the impedance has been equalized, the results may actually be quite acceptable, needing only a small amount of adjustment. If you are not using optimizing software these values will still provide a good starting point to begin your own tweaking. However, even if you are using optimizing software like Soundeasy, CALSOD, LspCad, etc., text book values are often a very good place to begin. Since this is not going to be the case with real world speakers, results with most of these values will not be optimum. The values calculated by the program are "text book" values that assume perfectly flat impedance and amplitude response. I hope this simple spreadsheet will assist you in building and designing your passive crossover. Welcome to "The Passive Crossover Design Calculator" Ver. The Passive Crossover Design Calculator By Jeff Bagby
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