POTENZA Watt 8 Ω, 20 Hz – 20 kHz, 0.1% THD 450 W 4 Ω, 20 Hz – 20 kHz, 0.1% THD 650 W 8 Ω,1 kHz (EIA), 0.1% THD 500 W 4 Ω,1 kHz (EIA), 0.1% THD 750 W 2 Ω,1 kHz (EIA), 0.1% THD 1,200 W Power/Bridged Mono 8 Ω, 20 Hz – 20 kHz, 0.1% THD 1,300 W 8 Ω,1 kHz (EIA), 0.1% THD 1,500 W 4 Ω,1 kHz (EIA), 0.1% THD 2,400 W