Previously, I had my subwoofer in the corner wall next to my TV and I could hardly feel any bass from the sub. I then moved it to the other side of the TV stand so it was in the middle of the room against the wall and that made zero difference. Just now I pulled the sub out a few feet from the wall from where it was in the middle. This made it so that I was sitting about 1.5-2 feet from the sub in my chair. Doing this, I did feel more bass because I was sitting so close to the sub and I felt even more bass when I pressed the bass boost button on the receiver. However, I am still not satisfied with the amount of bass the sub is producing. I should note that my sub is connected to the receiver with 18 gauge speaker wire through the front left and right terminals on the receiver because it does not have a subwoofer jack. The actual front speakers are connected to the subwoofer with 18 gauge wire as well. Also, the volume on the sub was turned up to its max volume during this whole process.
Would upgrading my 18 gauge cables to 16 gauge increase the bass? With the space constraints of my room, I only have two more spots that I could put my sub to test the bass. Those two spots are on exact opposite sides of the room, several feet (3-4ft) from the corners of the room and this would still be on the side of the room that my TV is on.
I wonder if maybe my sub is just not powerful enough to produce enough bass in the room I have it in? What can I do?