here we go, i have the H/K avr 430. im trying to set the X-over mode, low frequency limit. i have my speaker info:fronts-160Hz & 2.3kHz so i assume i set those to 160Hz. the rears just say X-over 2.5 kHz the center- im looking for that info on axioms site, that page was missing. Can someone please explain this stuff to me. do i have to convert kHz to Hz ? is there a ratio. i just dont know , please help. thanks again guys.