This is not directly available in most tools and allows you to retain the last entered value while bypassing or removing the component from the circuit. While it's possible now, so few take the time to look and see if that nice flat response is still there when you try to put your intended crossover in place and can allow guys to realize some less obvious combinations or solutions to a flat end result.Īnother highly useful feature in the "Tune" window are the added options of "open" and "short". When you do get to the box modeling, the ability for DIYers and experimenters to start looking at circuits driving modeled impedance curves before a box is built will be huge. I realize much can be done with PCD already, but the speed and intuitiveness of XSim is very impressive. This also makes it very easy to experiment with circuit ideas which are less commonplace or not so easy to add to some interfaces. The functions available really make it an impressive, experimental learning tool for those not yet familiar with circuit analysis and how parts work/interact. I was even more surprised to see the graphs immediately display once a complete connection was made. It was nice to intuitively grab for "Ctrl+R" and see the part rotate. I very much like what I see at first glance. There are also as yet no box-design features, but this is also planned so that full designs can be worked with using the infinite baffle data provided by vendors. But that is in the works, with some assistance from Jeff. XSim does not yet include geometric features (such as varying mic position, baffle or boundary-bounce effects) as in Jeff Bagby's very successful "PCD" and other programs derived from it. XSim can also update its own program (with owner permission) so people who use it online can always be up-to-date.And so I can add or fix features without asking you to deal with downloading and installing each time. XSim will be able to download these lists itself, when available. However, no vendors are as yet signed up to provide XSim access to part or driver information. The release version of XSim featiures automatic downloading of part and driver information based on vendor and part number, making it easy to find and order what you need to turn your design into working hardware. Graphic files can also be saved in standard picture file formats. A common "ground" node is provided, but its use isn't required.Ĭircuit designs (incuding all in included driver data sets) can be shared by email or forum post in XSim's ".dxo" format. Essentially any R-L-C passive network you can think of can be easily entered using graphical schematic entry, with results calculated as you design. The "free-form" aspect of XSim is that crossover designs are unrestricted, no particular circuit structure need be used. The circuit network is re-solved automatically with every change you make. You can watch the performance and/or stress on any part vary as you tune structure or component values in real-time. XSim allows you to see simultaneous multiple graphs of your choice, including impedances, voltages, power consumptions, group delay, and frequency, impulse, step, and square wave responses. There are "Example" files inlcuded in the XSim download (currently less than 1.5MB) as well. Some built-in multi-part "Circuit Blocks" also provide for basic pre-configured circuits to be tuned per their overall parameters (Q, corner frequency, attenuation, etc). Experimenting with "ideal" driver data (the default for each driver) can also be fun and helpful in understanding the effects of various circuit types.
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