I'm trying to play with WinISD for my Fi BTL 15 but I'm not sure what I need to put in for the parameters: Le, Z, and Pe. Can anyone help with this? I don't know if this will help but this is the link to the sub https://ssl.perfora.net/www.ficarau...Speakers/0010_BTL/product_overview.shopscript
What a week!!!!! OK Le is the voice coil inductance measured in millihenries (mH). The voice coil acts as an inductor and as frequency rises, so does the impedence ( in AC, resistance changes with frequency ). Maximum impedence, Zmax occurs at Fs. Which brings us to Z. So Z is the impedence of the speaker measured at 1000Hz. So for Z, I just list if its a 4-ohm or a 8-ohm speaker. Finally, for Pe just list the speakers RMS power handling.
Thank you for the help man. I dunno if I'm not seeing the answer for the Le or if I am understanding the explanation and just can't find the answer, sorry if I'm being blind lol
DC resistance is measured in ohms and its constant, it doesnt change. AC resistance (we call it impedence), changes with frequency. A coils (even a voice coil) resistance (impedence) increases as frequency increases. A capacitors resistance increases as frequency dercreases. Anytime we talk about AC, resistance changes as frequency changes. But we need to be able to compare different speakers, so its impeadence (all speakers) is measured at 1000Hz. My explination is not 100% correct, it has been adjusted to make it easier to understand. Hope this helps
