We have a 2014 ACE 30.1. I forget which TV we have. But I added one of these sound bars:
https://www.walmart.com/ip/VIZIO-29-...20-C6/43737417.
It does need 110 power so I can't use it with the tv when we run on 12V only. It is also a Bluetooth speaker and I can use it with my tablet and/or phone to play music. Sound is awesome when used with all media. Looks good mounted under the TV. I'd post a pic but the unit is in storage.