The document available for download here is a short tutorial on how to design a speaker system using the LspCAD speaker design program. The write-up applies to the current standard version of LspCAD as of May 28, 2001. The ZIP file contains an MSword write-up describing in detail a procedure which should aid the new user in the application of LspCAD to his design problem. A simple 2-way design is considered. The design progresses from the importating of SPL and impedance data through the crossover design and optimization and finally complete system optimization. I have also included the SPL and impedance data files used in the sample design. Thus, if you have LspCAD you should be able to duplicate this design example. Below are a copule of screen shots from the write up. I hope those of you who are using LspCAD find this helpful if you are having problems. Download file (583K). While I did not build the final system to the LspCAD spec,, the result is very similar to the optimized system designed in my companion paper on designing with SoundEasy.That system was built and tested. I suggest that you may want to downlaod the Soundeasy document as well to see the results of the of the measured system. I have no reason to suspect that the small differences in the optimized crossover designs for the two codes would produce any significant differences in performance.
John k |
