Cadence Acoustics FXA5000.5 5000W 5-Channel Flash (FXA) Series Class A/B Car Amplifier 5-Channel Flash (FXA) Series Class A/B Car Amplifier Channel 1-4 RMS Power Rating: 4 ohms: 65 watts x 4 chan. / 2 ohms: 90 watts x 4 chan. Max power output total: 5000 watts Frequency Response: 20Hz - 20,000Hz Remote Bass Control via RJ45 Jack