the samsung samsung HW-D450 has a wireless subwoofer which is good but I had auditioned it in croma once , the subwoofer is very very weak and useless
moreover its just a 2.1 bar with optical input, which is again useless bcoz even if the optical will send 5.1 the sound bar will give you only 2 channels
why not buy a decent 2 speaker system to get better result
one option is from our "hater's club" bose, its called companion 20 speakers, its has a design which will make a room full of sound, I am not praising it by any means but it will come within ur 14k budget
suggest you to audition the soundbar urself and see if u like the sound specially the subwoofer and also if you get a chance look out for some good 2 speakers system you can also use their 3.5mm jack to connect the TV to get 2 channel better sound like you will get from a soundbar