Usina Spark 500A Pro Edition Power Supply Variant:500A Pro Edition 00045% 20hz THD+N at 5V 00045% 20hz THD+N at 5V RCA level (12dBV) ~0 Impedance 8 or 16 ohms Sensitivity (1W 1m) 109dB SPL Impedance 8 Ohm AES Power Handling 80 Watts @ 900Hz & 40 Watts @ 650Hz Program Power Handling 160 Watts @ 900Hz & 80 Watts @ 650Hz Frequency Response OUTPUT POWER: 6500 Watts (maximum)** APPROXIMATE WEIGHT: 10