DESC: Robust (adj.) 1. Full of strength, vigorous. 2. Rich and full. Bingo. Mid-sized room? Need big bass, but don't need a subwoofer that's as big as your couch? Try the PSW303. 100 watts of continuous power move the beefy high excursion 8-inch driver with incredible bass and accurate musicality. Its modest size makes it easy to place in a cabinet or behind furniture for unobtrusive high performance. (Unobtrusive (adj.) Not noticeable.)