Description: 21 cm High End automotive subwoofer.
Design:    The CW21EX001 is a High End Car Audio
               Woofer with extremely long throw and low
               distortion. It is the choice for those seeking
               the most precise, full bodied and realistic
               reproduction of the lower frequency range
               in their cars. It is a perfect match to all High
               Quality Two Way Front Systems.

Features:  Precision formed aluminium cone.

                Natural rubber surround for optimum
                performance over a wide temperature range.

                Heavy cooper rings above and below the
                magnet system air gap for optimum
                         performances under normal and extreme
                conditions.

                Stiff and stable injection moulded metal basket
                to keep the moving parts in perfect alignment
                under normal and extreme conditions.

                Metal phase plug and 4 layer coil reduces
                heat build-up and improves power handling.
    

  Powerhandling: 150/300 Watts    
  Frequency Range: up to 2500 Hz
  Sensitivity(1W, 1m):  87 dB
  Nominal Impendance: 4 Ohms
  Voice Coil Resistance: 3,2 Ohms
  Voice Coil Inductance: 0,60 mH 
  Force Factor: 8,7 N/A


  Free Air Resonance: 32 Hz
  Piston Area: 220 sq.cm
  Moving Mass: 51,88 g
  VAS: 31,9 L
  QMS: 2,39
  QES: 0,41
  QTS: 0,35