Coaxial Speaker System
Woofer: Steel Basekt, Polypropylene Cone With Butyl Surround Tweeter: Built With Mylar Dome
Coaxial Speaker System    
Woofer: Steel Basekt, Polypropylene Cone With Butyl Surround Tweeter: Built With Mylar Dome Diaphragm   
Specifications:   COA-MA4032
Size: 4" 3-Way 
Woofer Magnet: 3.5oz 
Woofer Voice Coil: 0.75" 
Power (RMS): 40W 
Power (MAX): 80W 
System Frequency Response: 120Hz~18KHz 
System Efficiency @1W/1M: 88dB 
System Impedance: 4 Ohms