I am using a single Rokit 6 monitor speaker for sound from my Macbook Pro. It is connected with a single cable from the RCA jack to the headphone jack on my mac. Do I need to change any settings to make sure the full sound is properly coming from the speaker and not just one side of the stereo sound? If I click on "mono" in the accessibility settings the sound does not seem to change. However if I go to the sound settings and move the balance slider it lowers the sound if I move the slider to the right, even if I have mono output turned on. Does this mean I'm only getting the left side of the stereo sound and not getting the full sound? How can I be sure I'm getting the full sound through a single speaker? Thanx for any help.