Your hunchs are spot on. Get your speakers away from walls, try to keep area between and behind speakers clear, ie. low equipment racks, no big screen tvs. Treat first reflection points on side walls with absorption, I use diffusion at first reflection point on ceiling. Your equipment should do depth.
XLO/Reference Recordings Test Disc has some good tracks for image analysis, some of the Stereophile Test Discs also have tracks for this.
XLO/Reference Recordings Test Disc has some good tracks for image analysis, some of the Stereophile Test Discs also have tracks for this.