Bose 901 Receiver Compatibility I Recently Came Accross A Pair Bose 901 Series LV, Not Sure If They Need An Equalizer?

I recently came accross a pair bose 901 series lV, not sure if they need an equalizer? - bose 901 receiver compatibility

I read a few pages which can use an active EQ for the speakers, you run through a stereo receiver. I have an old receiver technology (400), the two Bose I run