Hertz, Dieci DBX 30.3
The DBX 30.3 is a car audio subwoofer box designed to enhance the audio system performance in the low range frequencies, optimizing the spaces and ensuring a quick, not too invasive installation.
The subwoofer unit, which is the DS sub, provides a punching, dynamic, surrounding bass. The very thick MDF enclosure, thanks to its rigid and stable structure, doesn’t affect the acoustics. The rear slanted panel fulfils two important functions: it reduces back-wave reflections and eases the installation.
| Speaker size mm (in.) | 300 (12) | 
| Power Handling - Peak W | 1000 | 
| Power Handling - Continuous W | 250 | 
| Impedance Ω | 4 | 
| Frequency response Hz | 28 ÷ 300 | 
| Sensitivity dB SPL | 91 | 
| Voice coil Ø mm (in.) | 38 (1.5) | 
| Xmax mm | 9 | 
| X-mech mm (in.) | 16 (0.63) | 
| Re Ω | 3,3 | 
| Fs Hz | 32 | 
| Vas l | 70 | 
| Qts | 0,62 | 
| Qes | 0,71 | 
| Qms | 5,14 | 
| Spl dB | 91 | 
 
    
     
 
      
      
        
           
        