Nah, you just need some lava lamps; also, if you want better imaging/sound from your speakers I would move the two you have built lower on the wall and away from the corner by 2-3 feet, then build two MORE and put them diagonally across that corner behind your CRT - maybe even move your setup so it's NOT in a corner, but centered on a wall.
It causes lots of extra reflection problems when speakers are set up across a corner, partly because any square corner (like the two on either side of the mix position, and the one behind your head) will reflect any sound that enters the corner right back out parallel to the incoming sound.
This makes it necessary to put a LOT of absorbent in several places in the room in order to keep these early reflections from smearing the direct sound from the speakers. Unless the room is really small, all that absorbent will often make the room too dead... Steve