Subdoofus: are you looking for a video/audio pre? If so, you'll need one that supports multichannel (pass through feature) -- for surround.
But what exactly is wrong, to your ears or eyes, w/ your system that a pre would solve? Assuming it's the sound then, as suggested above, going w/ an active pre may cost well above $500 for better dynamics AND transparency (i.e. check out passive). Another route would be to check out another, better sounding, source player that offers variable volume output.
Lastly, regarding a 2channel pre with HT processor, also check out the relevant thread here at A'gon!
Good luck!
But what exactly is wrong, to your ears or eyes, w/ your system that a pre would solve? Assuming it's the sound then, as suggested above, going w/ an active pre may cost well above $500 for better dynamics AND transparency (i.e. check out passive). Another route would be to check out another, better sounding, source player that offers variable volume output.
Lastly, regarding a 2channel pre with HT processor, also check out the relevant thread here at A'gon!
Good luck!