WinISD will help give you an *idea* of what each will sound like...I never mentioned it specified SPL levels //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif
no it doesn't.. look at the graphs ISD shows, and look at the actual response graphs for the two drivers..
not even close..
ISD doesn't account for high end rolloff, due to the vehicle, inductance, etc..
it doesn't account for low end rolloff, due to the vehicle, mechanical limits of the driver, etc..
and it **** sure doesn't show how the RE 8 is muddy from 40-55hz... and it doesn't show the noises the ED 8a made above 70hz...
They are each extremely well designed high excursion SQ drivers with about the same xmax and power handling...I cant see either getting way louder than the other.
once again... look at the response graphs I posted... the ED 8a has nearly twice the xmax of the RE 8, and either double or triple the power handling of it... and yet the RE 8 was louder.... period..
not to metion the ED 8 had a price tag over double that of the RE 8.. at the time this test was conducted..
there's several other 8" drivers I can bring into this conversation as well... CMP 8... true bass 8....
it's been proven over and over that ISD is worthless for modeling drivers.. a complete waste of time and resources..
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Loyd L.