QUOTE
But I want each channel to split up the freq. on each side: tweeter for hi, mid cones for mids, and bass cones for bass.
In case you don't know this already...
Inside your speaker cabinet, you will find a (passive) crossover network. It's a filter-network made-up of coils (inductors) and capacitors.
It is the job of the crossover network to send the correct frequencies to each driver. (There are exceptions... Some cheap speakers use only a capacitor to block low frequencies from the tweeter, and some systems with piezo tweeters don't use a crossover network at all.)
A system wired as you discribed is called a
bi-amped (bi-amplified) or
tri-amped system, etc. These are common in professional sound reinforcement (live concerts). These systems use an
electronic crossover (
example) connected between the preamp (or mixer) and the power amplifiers. They will use two or more separate power amplifiers... A mimimal tri-amped sytem would use one stereo amplifier for the tweeters, one for the mids, and one for the woofers.
I don't think there is any practical way to do this with a surround-sound receiver.