[. . . ] 220 × 950 × 230 mm, not including front grille Finish Black PVC (polyvinyl chloride) Mass Approx. [. . . ] Keep recorded tapes, watches, and personal credit cards using magnetic coding away from the speaker system. Please note that room acoustics can often produce large difference in the sound for small changes in speaker placement. Place the speaker system against a hard wall with its back about 10 cm away from a wall. The proportion of bass increases as you move a speaker close to intersecting room surfaces (wall and wall, etc. [. . . ] 220 × 1, 050 × 280 mm, not including front grille Finish Black PVC (polyvinyl chloride) Mass Approx. [. . . ]