Nominal Specifications
              
				    
                | Nominal Diameter | 
                300 mm (12 in) | 
               
                
                | Overall Diameter | 
                315.2 mm (12.4 in) | 
               
                
                | Bolt Circle Diameter | 
                298.5 mm (11.75 in) | 
               
                
                | Baffle Cutout Diameter | 
                283 mm (11.14 in) | 
               
                
                | Depth | 
                140.6 mm (5.54 in) | 
               
                
                | Flange and Gasket Thickness | 
                12.1 mm (0.48 in) | 
               
                
                | Net Weight | 
                2.5 kg (5.5 lb) | 
               
                
                Shipping Box (Single Carton Box) | 
                350 x 346 x 216 mm  (13.8 x 13.6 x 8.5 in) | 
               
                
                | Shipping Weight | 
                3.25 kg (7.2 lb) | 
               
                         
               
               
              Technical Parameters
              
                                
                  | Nominal Impedance | 
                  8 Ohm | 
                 
                                
                  | Minimum Impedance | 
                  6.2 Ohm | 
                 
                                
                  | AES Power Handling (1) | 
                  300 W | 
                 
                                
                  | Maximum Power Handling (2) | 
                  600 W | 
                 
                                
                  | Sensitivity (1W/1m) | 
                  99 dB | 
                 
                                
                  | Frequency Range | 
                  50÷5000 Hz | 
                 
                                
                  | Voice Coil Diameter | 
                  65 mm (2.56 in) | 
                 
                                
                  | Winding Material | 
                  Al | 
                 
                                
                  | Former Material | 
                  Glass Fiber | 
                 
                                
                  | Winding Depth | 
                  12.5 mm (0.49 in) | 
                 
                                
                  | Magnetic Gap Depth | 
                  8 mm (0.31 in) | 
                 
                                
                  | Flux Density | 
                  1.25 T | 
                 
                                
                  | Magnet | 
                  Neodymium Slug | 
                 
                                
                  | Basket Material | 
                  Aluminum | 
                 
                                
                  | Demodulation | 
                  No | 
                 
                                
                  | Cone Surround (3) | 
                  M-Roll | 
                 
                                
                  | NET Air Volume filled by Loudspeaker | 
                  1.9 dm^3 (0.067 ft^3) | 
                 
                                
                  | Spider Profile | 
                  1x variable height waves | 
                 
                                | 
            
            Thiele and small parameters
            
                              
                | Fs | 
                50 Hz | 
               
                              
                | Re | 
                5.4 Ohm | 
               
                              
                | Qes | 
                0.37 | 
               
                              
                | Qms | 
                9.9 | 
               
                              
                | Qts | 
                0.36 | 
               
                              
                | Vas | 
                92.6 dm^3 (3.27 ft^3) | 
               
                              
                | Sd | 
                533 cm^2 (82.62 in^2) | 
               
                              
                | Xmax (4) | 
                4.92 mm | 
               
                              
                | Xdamage (5) | 
                14 mm | 
               
                              
                | Mms | 
                43.4 g | 
               
                              
                | Bl | 
                14.1 N/A | 
               
                              
                | Le | 
                0.42 mH | 
               
                              
                | Mmd | 
                29.5 g | 
               
                              
                | Cms | 
                0.23 mm/N | 
               
                              
                | Rms | 
                1.4 kg/s | 
               
                              
                | Eta Zero | 
                3.03 % | 
               
                              
                | EBP | 
                135 Hz | 
               
                           
             
             
              PART NUMBER (P/N)
              
                                
                  | Push Terminals - 8 Ohm Version | 
                  03003958 | 
                 
                               
               
               
               
              Notes:
              
                                
                  | (1) 2 Hours Test According to AES 2-1984 Rev. 2003 | 
                 
                                
                  | (2) Maximum power is defined as 3dB greater than nominal power. | 
                 
                                
                  | (3) Treated Polycotton | 
                 
                                
                  | (4) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3) | 
                 
                                
                  | (5) Maximum excursion before permanent damage | 
                 
                              
              |