Because of their rounded profile, A 340 satellite speakers can be placed almost anywhere: horizontally?or vertically?on a bookshelf, on a wall, in a corner. Offers superior sound quality and high power handling! Its size and design makes it a perfect match for most flat-screens on the market. Despite the A 340s medium size, it features a true two-way design, with a 4-inch woofer and 1-inch horn tweeter. This provides superior sound quality and high power handling. System Type: 2-way bassreflex Woofer (mm/in): 102 / 4 Tweeter (mm/in) :Horn with 25 / 1 Power (W, long/short term): 70 / 100 Sensitivity (dB, 2.8V/1m): 90 Frequency Range (Hz): 50 - 20,000 Impedance (Ohm) : 6