I assume you have two stereo amps (and not monos) and are looking to add the center channel for home theater. You'll need a a component to handle the preamp function between the source component (DVD player, VCR) and the center channel's amp. I recommend buying a preamp/processor. You'll also need the processor for at least DTS and DD decoding (although most DVD players have built-in decoding for at least the latter). And you'll need a processor for VHS viewing in Dolby Pro-Logic.
Adding a center channel
Currently have 2 channel system, with 2 amps, stereo preamp, tuner, etc. Would like to add a center channel, is there any way to accomplish this without buying a new preamp? I've heard there are processors, but is there one that would accomplish what I'm looking to do? Any suggestions or recommendations??