I need some advice on a few Denon products.I am looking at buying a Denon 5600 receiver and selling my 3802 Denon. I can pick up the 5600 for 300us. Is this a good deal?

I bought some Focal 716S speakers and they have four posts. From left to right the post are labeled negative III, negative II, positive III, positive II. I currently have regular speaker cable hooked up to the negative and positive III positions. My logic was that III might mean that the two woofers, and one tweeter would be incorporated. Honestly though I don't know.
Do you think this is correct?
Should I biwire, and if I do what are the benefits and drawbacks?
I am running a Harmon Kardon AV-130 with 55 watts in Stereo Mode.

Room is roughly 9' across by 16' deep by 8' high and made entirely of different kinds of concrete, with hardwood floors. DIY bass traps help, but the room is problematic with or without. System is Arcam FMJ-CD23 player, Naim AV2 pre-pro, Naim Nait5i (gain matched) for power, and, currently, Linn Ninkas. The Ninkas sound good -- decent PRAT with adequate microphonics and well-controlled bass, but conspicuously lack in the imaging and soundstage department.

The anwser is: NO.

http://www.stereophile.com/reference/108tech/index1.html

What could be seem as a theoretical approach to DRC techniques is, in truth, based on misconceptions and lack of understanding and need some comments about.

Let's look at the figures:

Hey guys - I'm offering the first of many Free Music Fridays on Computer Audiophile. These are free (as in beer) high resolution downloads.

http://www.computeraudiophile.com/node/252

If you know the Allison CD6 and the sound quality, I'd appreciate any tips on a similar sounding replacement. I'm drawn towards the Monitor Audio RS1, but I wonder about the low end.

Not looking to add a subwoofer (no room). Not looking to spend over $1K.

To all Bob Dylan fans:

First: If you haven't already seen it then by all means please go out and see the movie "I'm Not There" before it leaves the theaters. Link to IMDB info:

IMDB Info for "I'm Not There"

Second: Listen to the soundtrack recording of "I'm Not There"

The soundtrack is a double CD featuring 34 tracks by a wide variety of artists, all covering a wide variety of Dylan compositions.