| Re: Built my subwoofer, now I thought I'd model it...
I don't think I made my point clearly enough.
With no EQ active, above 20hz, Blue's model is driver excursion limited to 400 watts at 29.54hz...ok, it exceeds Xmax by .37mm. Unless the amp can deliver more than 400 watts, it will clip before the driver bottoms, no matter how much boost is applied.
If you engage the +6dB EQ, driver excursion now peaks at 19.1mm @ 33.94 hz. Disengage the EQ, change the input signal to 960 (240 + 6dB) and excursion at 33.94hz is 19.259mm. For excursion/spl calcuations, WinISD is not backing out the power increase demanded by the EQ, it's "adding" it to the specified input power.
-Brent
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