（1）High quality single 15 inch Subwoofer, the LF (low frequency) can extend
  to 40Hz.
（2）This subwoofer is made of high density MDF.
（3）It is used the quality damping material, it can reduce harmonic and make
  the sound well arranged.
（4）It is suited to ballroom, nightclub,gym and high class KTV room.

Specifications:
   models 36Hz-250Hz
   Frequency Response 97dB
   Impedance 8Ω
   Components 15" subwoofer 
   Dimensions 51x47.5x60(cm)
   RMS 500W
   Peak power 1000W