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pa woofer speaker box (W157540)
pa woofer speaker box (W157540)

speaker/woofer speaker/pa woofer speaker 1. 3-inch, edgewound aluminum VC 2. 400W (RMS) 3. 97dB (SPL) 4. 43-3500Hz

speakers/woofer speaker/pa woofer speaker(W157540)


Nominal Diameter380/15mm/inch 
Rated impedance8ohm 
Power handing capacity400watts 
Frequency RangeFs-3000Hz 
Voice Coil Diameter75/3.0mm/inch 
Voice Coil MaterialCopper  
Number of layer2  
Kind of layerinside/outside   
Resonance frequencyFs40Hz
Dc resistanceRe5.7ohm
Mechanical factorQms13 
Electrical factorQes0.29 
Total factorQts0.29 
BL factorBL21.9T.M
Effective Moving massMms96g
Effective Cas air loadVas167liters
Effective piston areaSd0.087m^2
Overall Diameter390/ 15.4mm/inch 
Bolt Circle Diameter372/14.7  mm/inch  
Bolt Hole Diameter8-φ6.5/8-φ0.26mm/inch 
Mount Baffle Cut-out357/ 14.1mm/inch 
Depth171/ 6.8mm/inch 
Net Weight8.8kg 
Shipping Weight10.5kg 
Package Size430X420X210/1PCSmm  

pa woofer speaker box (W157540)

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