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.
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