Outdoor Powered Audio Speaker 15 Inch Double Magnets Subwoofer Professional Sound System.

Outdoor Powered Audio Speaker 15 Inch Double Magnets Subwoofer Professional Sound System .       4 INCH COPPER VOICE COIL97.5 dB/SPL SENSITIVITY2400 WATT PROGRAM POWER HANDINGFEM OPTIMIZED MOTOR AND SUSPENSIONS36mm PEAK TO PEAK MAXIMUM EXCURSIONOPTIMIZED COOLING SYSTEMRESONANCE FREE AND HEAVY DUTY BASKET DESIGNTRIPLE ROLL SURROUNDGENERAL SPECIFICATIONSNominal diametermm (in.)389(15)Nominal impedanceΩ8Minimum impedanceΩ6.7Program power (1)W2400AES Power rating(2)W1200Sensitivity (3)dB97.5Frequency rangeHz40 ~ 1000Voice coil diametermm (in.)100(4)Chassis materialAluminium Magnet materialFerrite Magnet dimensions (ODxIDxh)mm220 x 110 x 25 2pcsCoil materialSV Former materialGlass Fiber Xmax(4)mm12.5Xmech(5)mm18Gap heightmm10Voice coil Wingding heightmm30SMALL SIGNAL PARAMETERSDC resistanceReOhm6Resonance frequencyFsHz40Moving massMmsg183ComplianceCmsmm/N0.10Force factorBLN/A28.3Mechanical Q-factorQms 6.61Electrical Q-factorQes 0.4Total Q-factorQts 0.37Equivalent air volumeVasI121Voice coil InductanceLemH1.8Diaphragm areaSdcm²880Reference efficiencyEta 0%2.5SHIPPING INFORMATIONNet weightKg15Multipack size (1) (W x D x H)mm410 x 410 x 230Multipack weightKg16.2  Quality Assurance Since the raw material sent in untill the speaker sent out, every aspect of them will be fully checked.We have many advanced test equipments to measure the quality of products. No defectives will be send out.Our company have a nice quality control managing system(QC) that have strict management of products and staffs. FAQ1.Q: Are you a factory or trading company?A: We are a manufacturer with our own factory ,we have more than 15 years experience.2.Q: Can you do OEM and ODM?A: Yes, both. We can put your idea into products.3. How many days do you need to prepare the goods?We need about 20-25 working days for large order.     /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1