... Switching power amplifier 8ohm, 2200Wx2, 13.5kg High power, good heat sink system, Stable, reliable 2 ohms working power amplifier ModelPA- ... 502PA-802PA-1002PA-13028Ω stereo power500Wx2800Wx21000Wx21300Wx24Ω stereo power725Wx21160Wx21700Wx22200Wx28Ω bridged monon1450W2320W3400W4400W4Ω bridged monon1660W2660W5000W5200WFrequency response20Hz-25KHz(±0.5dB)THD + N(Rated power,4 ...