I have the YSP-4000 which works great in my room. It has a mode (called My Surround) which is, as I understand it, more or less identical to the Surround in the YAS70. I can tell you that that mode is highly inferior to the 5-beam mode of the YSP-4000, but of course the YSP is a lot more expensive, although the price Exit cites above is considerably cheaper at the Audioholics store (where I bought mine) and even somewhat cheaper elsewhere on the net. The other soundbar I seriously considered was the new Slimstage from soundmatters.com. Given that you have a 52" set, it seems to me that their 50" bar is more what you'd you'd want for esthetic reasons if nothing welse.