SAXR-50 high-pass slope

hello,

This may not be the best forum to post this in, but it is driven by an Equibit amplifier so...

Does anybody know what slope the satellite high-pass is for the Panasonic SAXR-50 receiver? This is the one that's selectable at 100, 150, or 200Hz. I'm wondering how steep it is, to see what drivers I can get away with using... hopefully it's 4th order...

thanks,

-tal