A:Answer To sum it up, you'll see the difference in the SJ5Y-S. And it's not just the 20W increase, but it seems to handle voice a lot better than the SH3K (Which for the price is still a very good soundbar/subwoofer setup. The addition of the front speaker cover on the SJ5Y is certainly nice, and the HDMI input is great if you plan on using a separate device (BlueRay or digital cable box) that needs to pass through to your TV. And lastly, the SJ5Y is compatible with the SPJ4 Wireless rear speaker kit that is sold separately if you ever wish to upgrade to a surround sound setup. The SH3K is not. Because I didn't need the extra functionality I ended up going with the SH3K which works great, but the upgrade is worth the additional cost if you choose to go with the SJ5Y-S. Both are priced competitively given the Samsung and Vizio alternatives which are a little more expensive for a similar product.