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<blockquote data-quote="helotaxi" data-source="post: 1992966" data-attributes="member: 550915">Mms-moving mass.&nbsp; DOn&#039;t worry about it.Cms-suspension compliance.&nbsp; Don&#039;t worry about it.Rms (is this just the RMS like watts of the sub?)Re (i don&#039;t know what to put here because i have 4ohm DVC subs wired to 2ohm)-Re is generally stated with the coils wired in series.Bl-motor strength.&nbsp; There&#039;s a spot for it in WinISDDd-Driver diameterLe-voicecoil inductance.&nbsp; Spot for it in Win ISDSd (mine is 480mm Cm^2, it asks for in^2)-click on any unit in WinISD and it will change units.&nbsp; Click through until it displays the unit you need.fLe-don&#039;t know so it isn&#039;t importantkLe-see above, both have something to do with inductance thoughHc-not importantHg-not importantVd-driver displacementXlim-the smaller of Xmag or Xmech or Xsus.&nbsp; Basically the maximum usable excursion of the driverPe-power handlingno-???Znom-Nominal impedanceUSPL-who knowsSPL-sensitivityDivide by 25.4 to convert mm to in.&nbsp; Divide any decimal remainder inch by 0.0625 to get 1/16&quot;Set the sub on the table and measure from the table to the bottom of the mounting flange.Voice coil diamater and driver displacement.</blockquote>

[QUOTE="helotaxi, post: 1992966, member: 550915"] Mms-moving mass. DOn't worry about it. Cms-suspension compliance. Don't worry about it. Rms (is this just the RMS like watts of the sub?) Re (i don't know what to put here because i have 4ohm DVC subs wired to 2ohm)-Re is generally stated with the coils wired in series. Bl-motor strength. There's a spot for it in WinISD Dd-Driver diameter Le-voicecoil inductance. Spot for it in Win ISD Sd (mine is 480mm Cm^2, it asks for in^2)-click on any unit in WinISD and it will change units. Click through until it displays the unit you need. fLe-don't know so it isn't important kLe-see above, both have something to do with inductance though Hc-not important Hg-not important Vd-driver displacement Xlim-the smaller of Xmag or Xmech or Xsus. Basically the maximum usable excursion of the driver Pe-power handling no-??? Znom-Nominal impedance USPL-who knows SPL-sensitivity Divide by 25.4 to convert mm to in. Divide any decimal remainder inch by 0.0625 to get 1/16"Set the sub on the table and measure from the table to the bottom of the mounting flange.Voice coil diamater and driver displacement. [/QUOTE]

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