Although the Dord 165 features a single woofer technology, the performance of this small size subwoofer is nothing but impressive. Integration with Seis, Aingel or Oran speakers is excellent, with overall sound coming across seamlessly. The Dord 165 keeps pace energetically, injecting a subtle dose of bass to proceedings. It is ideal for small to medium size listening rooms. Frequency response : 35 Hz - 150 Hz Crossover : 40 - 150 Hz Phase : 0 - 180° Dimensions : H320 x L198 x P381 mm Weight : net : 22 lbs / 10 kg