HU only.
My amp has one, but I don't remember what it's rated for.
I high pass the speakers directly connected so they don't distort (but I lose midrange in this case). Whenever I feel like getting a decent ~600W RMS 4 channel amp, I'll continue to high pass them. High pass is set at 125Hz BTW... any lower and speakers distort at high volumes from the midrange and the HU's inability to drive the speakers very well.
My sub is low passed (obviously!), and I like having it set thru the HU so I can change it from 50Hz to 80Hz depending on the music I'm listening to at the moment.
Last edited by Big Daddy Kane; 08/10/06 05:01 PM.
