OPTIBELT V-Belt MERCEDES BENZ W123
                EGP 140 
              
      
      
  
maximum wattage = 1000 watt
RMS wattage = 250 watt
sensitivity = 90 dB @ 2.83 V / 1 m
frequency range = 35 Hz - 200 Hz
impedance = 4 ohm
dimensions : 13 inches diameter * 26 inches length
installed in car trunk