You're in luck. I just purchased that same model today. Infact I probably saw you today if you're in NJ. LOL. Well I got mine from RadioShack as I can almost guarantee they have the lowest price as it's on sale there. A pretty nice sale considering how much i saw it at other places.
Ok here's the skinny on it.....
Well a few things put me off. How light the reciever is. Infact how light the whole box is. Ok so you open it and the standard things are there. Speakers, wires, reciever, remote and antenae (sp). You're gonna want to upgrade the wire. I didn't but soon will. The rear wires are long enough to service my room but the room I have it in is rather small. It wouldn't be anywhere near long enough for my living room nor main bedroom. So for my game/lab/guest room it's long enough.
Ok now on to what you want to hear, no pun intended. The sound is ... well depends. I hooked my cable box and xbox 360 to it. I tried the cable box first, hooked up via the coax digital connection. The sound was "decent" but not what i thought I'd get. It was pretty anemic to me and voices sound small. I immediately thought "going be a long wait while I upgrade speakers". I messed with a few settings and got it sounding better. A bit disappointed i then switched over to the optical connection where the 360 is connected. THIS THING SOUNDS LIKE TWO DIFFERENT RECIEVERS!! FOR THE BETTER!!! Wow the sound was right on the money. i mean i was totally shocked by the sound. I auditioned Gears of war and NBA 2k7 and wasn't disappointed either way. i mean everything was there. I felt like I stole it for only paying..... well paying way less than the price of two hdmi monster cables from BB. I'm not kidding, I was impressed. If I could get the cable side to sound as good as the 360 I really wouldn't even think of upgrading the speakers.
It is/was late so i couldn't test my theory about volume levels. You see i think i may need to crank up the volume in order to get a better sound from the cable. I'm going to do a little more experimenting with the cable box and coax digital connection to see if i can get this to sound more "dynamic" like the 360. Good thing about this 1 coax and 1 opitcal. Bad thing about this 1 coax and 1 optical. I'd rather have 2 optical and 1 coax. Not too many devices do coax but almost everything does optical.
I didn't try the tuner, I'll hook that up later. Also I didn't connected the reciever to my television so I can't tell you about that either. Tomorrow I will give more time to the reciever and tell you more then. One bummer about this thing is that the universal remote that comes with my DVR can't turn the reciever on or off. I can control volume but thats about it. Also if I press the input button on the remote the reciever switches to the VCR input and stays there. Another push of the button and nothing, just vcr.