I'm hoping someone can comment on the use of the HW-E350 or HW-E450 with this TV.
We have a PN51D550 in the bedroom. Last week we picked up a PN51E530 to replace a Sony KDS-R60XBR1 that we had relegated to watch while on the treadmill.
We found the audio from the Sony to be fine while on the treadmill and the audio from the PN51D550 to be fine in the bedroom down around 8-14 audio level setting. But the audio from the PN51E530 just isn't adequate for the task when we are on the treadmill.
I tried the standard audio setting and the voice setting. The voice setting sounded tinny and when the signal changed to music when cutting between scenes it was very noisy and harsh. On the standard setting we had to have the audio level at 100% and even then it wasn't satisfactory.
We don't need high quality surround sound on that TV, but we do want it to be loud enough with good enough voice quality to be able to watch and listen while we exercise.
Based on all of this, I am thinking of getting a soundbar. It appears that Samsung has sort of messed up with the integration/controls of their own products, but I still lean toward same brand products. At least that way, if there is a problem, the fingers all point in the same direction.

So... is anyone able to comment about the E350 or E450 for our purposes?
As an aside, there is no element way to mount the soundbar onto this TV is there? Am I correct in understanding that it has to either rest on a surface below the TV or be wall mounted?
Thanks for any comments.