JBL L100 King of Rock & Roll what's in it performance

SYSTEM SPECIFICATIONS: Nominal Impedance: 8 Ohm 50 Watts Power Capacity: Continuous Program Crossover Frequencies: 2500 Hz, 7500 Hz Sensitivity: 78dB (1 Watt @ 15 Feet) 14-1/2" x 23-1/2" x 13-3/4" D Enclosure Dim: 37cm x 60cm x 35cm Shipping Weight: 54 lbs. -24 kg.