JBL 型号:pasion12SP 12” (305 MM) WOOFER POWER: 300W RMS (450W dynamic) VOLUME: -∞ - +10dB FREQUENCY RESPONSE: 40Hz - 160Hz CROSSOVER POINT: 40Hz - 160Hz (variable) 24 dB/octave PHASE: 0° - 180° INPUT: 1x (R+L RCA); 1x XLR OUTPUT: (Link): 1x (R+L RCA); 1x XLR SYSTEM TYPE: Front facing, bass-reflex POWER SUPPLY: 100~240V 50/60Hz (120V, 60Hz (US); 220~230V, 50/60Hz (EU)) POWER CONSUMPTION (STANDBY): < 0.5W PROVIDE AN M20 (THREAD) SPEAKER BRACKET MOUNTING HOLE SIZE (W × D × H): 396 × 464 × 430 mm WEIGHT: 22.65KG