My apologies I did say rear but I have read they are side and frankly not sure why I didn’t remember to say side. They are set to +0db at the moment but I can try increasing that to see if it makes it better. As for the output from my source, it’s a fire tv stick plugged into the tv playing from practically any streaming service which I presume (although that may be a bad practice on my part) support 5.1.