Sound bar for Dialogue


What is the best sound bar priced less than $500 that will help to understand dialogue on tv shows.  We have to frequently use closed captions to get the words on some shows.  I do not have such trouble understanding words on my audio system which is in another room.  Thanks.
rdoc
Just plug in some decent powered computer speakers instead of the god awful flat screen audio.
I have an AVR with ESLs and a ribbon center that I never need to fire up for TV.
@rdoc,

I highly recommend SONOS surround bar. I have been a long time user (15 plus years), very reliable and high quality sound. Easy to setup, give it a try in your home.

https://www.bestbuy.com/site/sonos-beam-soundbar-with-voice-control-built-in-white/6253411.p?skuId=6...
Center channel speakers are best for obtaining dialogue clarity.  What are you using to transmit audio?  Does your gear have the capability to integrate a center channel?
Thanks to all who made suggestions.  I was able to pick up an open box ZVOX SB500 for $150 off.  My wife and I watched a program last night that for which we previously had to turn on captions to understand a fair amount  of the dialogue.  With the ZVOX sound bar, we could understand 99% of the dialogue with no captions.  It is a great product.  In visiting with a very knowledgeable Best Buy rep, he said that the ZVOX is one of the best maybe because they make hearing aids. Thanks again.  
I augmented a pair of KEF Reference 1s with a KEF Reference 204/2C center speaker for dialog. My setup integrates an Ayre stereo preamp with a Bryston SP3 processor for surround. Last night I set the center speaker to none in the SP3 menu and was surprised by how much clearer the dialog and centered image became. I’ll try some tweaking and careful level matching before abandoning the 3.5’ wide 80 pound 204/2C.