Hey Jim, try pushing the 52's fairly hard in two-channel mode sans sub and give them a good workout. Digital from TV isn't going to impress unless you're running the digital out from cable or sat box into receiver, the TV's digital out is only stereo (maybe) depending on your display. I would seriously consider an Onkyo 709, mine has been very dependable and it has pre-outs if ever you want to expand to outboard amps, I'm getting ahead of myself, I do that a lot. Personally I don't care for the newer Onkyo's maybe the 818, but anything below that you're not getting anything more than last years models have to offer except more bells and whistles. Saying the 52's are too short is not a concern, the vertical dispersion is impressive, try sitting and slowly stand up, you will notice the sound doesn't change much if at all.