A1540A	A1544A	
Description	15"	15"	
Impedance	4 Ohm	Dual 4 Ohm	
Power Handling (RMS)	300 Watts	300 Watts	
Frequency Response	27-150 Hz	30-150 Hz	
Sensitivity	90 dB	90 dB	
Magnet Weight	50 oz.	50 oz.	
Mounting depth	6.625"	6.625"	
Mounting diameter	13.875"	13.875"	
Overall diameter	15.375"	15.375"	
Voice Coil Diameter	2"	2"	
Weight	11.4 lbs	11.4 lbs