JVC KS-DR1004D 400 Watts and Powersports 4-Channel Car Audio Marine AmplifiresJVC KS DR1004D Amplifier Maximum Power Output 400W RMS Power Output (4 ohm) [ 1% THD 14. 4V] 45W x 4 (20 20,000Hz) RMS Power Output (2 ohm) [ 1% THD 14. 4V] 45W x 4 (1,000Hz) RMS Power Output (Bridged 4 ohm) [ 1% THD 14. 4V] 90W x 2 (1,000Hz) Class Class D Signal to Noise Ratio (reference: 1W into 4 ohms), CEA 2006 Compliant > 82dB Load Impedance Load Impedance Allowance 2 8 ohms HPF 50Hz 200Hz ( 12dB oct) LPF 50Hz 200Hz ( 12dB oct) RCA Input Ach L R,