These holes are for the Bass you want to place the bar about one foot in front of a wall it will actually use the environment to create what's called Stadium sound and give you a much Fuller experience I have a YouTube channel and I have made 3 videos that might be of help. Due to policy I cannot leave you a link but if you just Google JBTechfanatic I should come up and just look for my soundtouch videos. I hope this helps enjoy your new system.