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Joined 2003
REW has plenty of averaging options via the "All SPL" section, including vector average. Why one would want to do that for crossover design is beyond me.
One reason to average measurements manually after getting them is that you have the option to avoid spoiled "takes" like when cars drive by or the doorbell rings or a dog parks. Repeated or long automated measurements are great and help keep things Time Invariant, but nothing sucks like having about 40 averages and the 41st is spoiled by sudden noises.
Hi! Is it possible to model a passive line level filter in Xsim? One would go between pre amp and amp.
I have the speaker measurements, and my amp has a 40K ohm input impedance. So based on that impedance, I need to model line level filters....
Thanks
I have the speaker measurements, and my amp has a 40K ohm input impedance. So based on that impedance, I need to model line level filters....
Thanks
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Most definitely. I think that the approach to use is to set the voltage source with an Rg equal to the output impedance of the preamplifier. The power amplifier would be represented by a "Driver" with its Z value set to be equal to the input impedance of the power amplifier (40kOhm in your case).
What filter order are you trying to create/model?
What filter order are you trying to create/model?
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Here's a proof-of-concept that I did, using VituixCAD. XSim should be able to do the same sort of circuit without any problem. The Driver D1 was set to Z=40kOhm. The site https://www.linkwitzlab.com/filters.htm gives a design formula.
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