If the TV has Anynet+ feature, it should work with any amp, Home Theatre or Soundbar with the same feature, allowing single-remote operation. Be warned that the external audio device may need to be turned on through menu selection.
Anynet+ is Samsung-proprietary, but other users have reported successful operation with other devices using HDMI-CEC control.
I bought a Samsung un40c7000. I'd like to upgrade the audio, but don't want to add another remote to my setup. Is there an audio addition available that will work with the TVs existing remote?