Reproduction system Coaxial 2-way PMI-PP cone woofer 130 mm Metalised PEI balanced-drive tweeter with neodymium magnet 25 mm Powerful strontium magnet for dynamic bass response ? Music peak power (W) 160 Continuous power (W) 30 Fs (Hz) 85 Qts 1.20 Vas (Litres) 6.9 Frequency response (Hz) 40~32,000 Efficiency (db/W/m) 91