Right now, Woot has the Samsung HW-KM45 which is a 2.1 Channel 300W Soundbar system that also includes a wireless subwoofer, priced at just $89. Now this is for a refurbished model, seeing as the newer model typically runs for around $360, this is a really good price. Not to mention you do get a wireless subwoofer included, which is definitely a plus.
This soundbar will output around 300W of power, which is quite a bit of power and will definitely sound really good. Now Samsung does not have Dolby Atmos included here, instead it has Dolby Digital 2 Channel, which still includes some advanced audio processing for some great sounding audio. Now this does have a separate controller for controlling the audio, but you can hook it up to your TV remote, so you can control everything with one remote. There is also Bluetooth support here, so you can also play music from your smartphone or another device, and get some really good audio out of that soundbar for parties and such. This soundbar does connect to your TV using a HDMI cable, which works really well for being able to control both with the same remote. For $89, it's hard to go wrong with this soundbar, and it's one you won't regret.
Woot does offer free shipping, but only for Amazon Prime members. So if you are not an Amazon Prime member, you will need to pay a flat fee for shipping. Although you can also opt to sign up for a free 30-day trial of Amazon Prime and still get free shipping here. So that's a great way to get around it, just remember to cancel your trial before it expires, or you'll be paying $119. Woot does not charge taxes either, which is pretty good for those that want a great deal.