Thoastrouble,
You don't necessarily need 4 separate amps to do biamping.
You simply have 2 stereo amps. One powers the woofers on both speakers, and the other amp powers the tweeters on both speakers. Of course, you need speakers that are capable of being biamped. You can tell this because they have 2 sets of speaker inputs on the back (and often have a jumper between them so that you can connect it to the amp with a simple single connection speaker cable).
Michael
You don't necessarily need 4 separate amps to do biamping.
You simply have 2 stereo amps. One powers the woofers on both speakers, and the other amp powers the tweeters on both speakers. Of course, you need speakers that are capable of being biamped. You can tell this because they have 2 sets of speaker inputs on the back (and often have a jumper between them so that you can connect it to the amp with a simple single connection speaker cable).
Michael