Are your bi-wire cables equal gauge on both sets of speaker terminals? I ran into an issue with a bi-wire set that had 12g on the woofers and 14g to mids & treble. I could never get a respectable frequency balance on my old N802’s. My conclusion was due to the high crossover frequency on the bass at 350hz. If I ever decide to bi-wire again, I would make sure both runs are identical.