You may be able to get away without acoustical treatment in a living room where there is unorganized clutter, but in a dedicated room where you're dealing with parallel walls, sharp corners, flutter echos, bass bump, etc. room treatment is a must. It's likely that most living room will sound better than an untreated dedicated room but once you have the dedicated room treated properly, the sound is beyond anything you've achieved in the past.
I once saw the DIY PVC pipes in a room and thought there's no way it does anything, I guess it's time to look into what it does. You don't know what you don't know until you know.
I once saw the DIY PVC pipes in a room and thought there's no way it does anything, I guess it's time to look into what it does. You don't know what you don't know until you know.