Dual 12 inches  
1. POWER IS 300W*2 ( RMS )   
2. SPRAY WOODEN BOX. 12 INCH PROFESSIONAL SPEAKER. THE WOOFER MAGNET IS 156 MM, VOICE COIL IS 65 MM. 4 LAYER. THE TWEETER IS 100 MM MAGNET, VOICE COIL 34 MM. WITH CROSSOVER INSIDE.
3. THE WOOD IS 1.5 CM


Dual 15 inches 
1. POWER IS 380W*2 ( RMS )    
2.  SPRAY WOODEN BOX. 15 INCH PROFESSIONAL SPEAKER. THE WOOFER MAGNET IS 170 MM, VOICE COIL IS 75 MM. 4 LAYER. THE TWEETER IS 120 MM MAGNET, VOICE COIL 44 MM. WITH BIG CROSSOVER INSIDE.                  
3. THE WOOD IS 1.5 CM.