Description
| SPECIFICATIONS | ||
| Model | QX-250 | QX-300 |
| Magnet Weight | 68.47oz | 68.47 oz |
| Nominal Impedance | （2+2）Ω | （2+2）Ω |
| D.C Resistance | （1.8+1.8）Ω | （1.8+1.8）Ω |
| Cone | Paper | Paper |
| Surround | Rubber | Rubber |
| Power Handling (RMS/Peak) | 300-400W /600-800W | 350-500W / 700-1000W |
| Suspension Travel | 21mm | 21mm |
| Force Factor ( BL) | 12.1TM | 12.9TM |
| Fs | 48Hz | 45Hz |
| QTS | 0.65 | 0.67 |
| Qes | 0.73 | 0.77 |
| Qms | 5.3 | 5.1 |
| Effective Moving Mass | 115.6g | 146.5g |
| Equivalent Volume | 16.2Ltr | 48.3Ltr |
| Sensitivity | 88dB ±2dB | 89dB ±2dB |
| Voice Coil Diameter | 50 mm | 50 mm |
| Outside Diameter | 270mm | 320mm |
| Cutout Diameter | 235mm | 286mm |
| Mounting Depth | 85mm | 95mm |
| Motor Diameter | 180mm | 180mm |
: 
: + 86-769-22867132
: +86-769-81517269
: No.703, Block B2,TIANAN CYBER PARK, NanCheng district, Dongguang
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