We are Guangzhou Zhaohua Audio Equipment Co., Ltd. based in Guangzhou , China. We are member of Tradekey.com since July, 2010. Our business is related to Electrical & Electronics Supplies industry and we specifically deal in speaker/loudspeaker. Please find our product details below: ZHL-L1219 speaker/loundspeaker ZHL-L1219 speaker/loundspeaker Prodcut name 12 size speaker ZHL_L1219loundspeaker Model ZHL_L1219 Sensitivity 95.7dB Nominal diameter 12” Power handing capacity 130W Frequency range 42.0441Hz~2kHz Resonance frequency 42.0441Hz Rated impedance 8.0ohm Voice coil diameter 35.5mm BL factory 11.254t DC resistance（Re） 8.0ohm Mechanical factor(Qms) 3.672 Electrical factor(Qes) 0.537 Total factor(Qts) 0.469 Effective cas air load(Vas) 176.107Ltr Effective piston area(Sd) 57.526mm2 Efficiency (No) 2.356% Cms 378.315uM/N ZHL-L1219 speaker/loundspeaker ZHL-L1219 speaker/loundspeaker Prodcut name 12 size speaker ZHL_L1219loundspeaker Model ZHL_L1219 Sensitivity 95.7dB Nominal diameter 12” Power handing capacity 130W Frequency range 42.0441Hz~2kHz Resonance frequency 42.0441Hz Rated impedance 8.0ohm Voice coil diameter 35.5mm BL factory 11.254t DC resistance（Re） 8.0ohm Mechanical factor(Qms) 3.672 Electrical factor(Qes) 0.537 Total factor(Qts) 0.469 Effective cas air load(Vas) 176.107Ltr Effective piston area(Sd) 57.526mm2 Efficiency (No) 2.356% Cms 378.315uM/N Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.