Kenwood KAC-6404 Features:

• Aluminum die cast heat sink
• Power MOS-FET switching power supply
• 500 Watts max Output Power  
• 2O Load Capability
• Built-in Low-pass filter  
• Built-in High-pass filter  
• Speaker level input

KAC-6404 Amplifier Features:

• Load Capability 2O Stable
• Maximum Output Power 500W
• Rated Power Output 40W x 2 (4O)
• Rated Power Output 60W x 4 (2O)
• Bridged Power Output (4O) 130W x 2
• CEA-2006 Compliant  
• Low-pass Filter  
• High-pass Fliter  
• Switched Mode Power supply , with Power MOS-FET  
• Power Indicator  
• Line in 2 RCA's
• Speaker level Input  
• Die-Cast Aluminium Heat Sink  

KAC-6404 Amplifier-Specifications:

• Maximum Power Output (4?) 125W x 4
• Rated Power Output (4O, 14,4V) 40W x 4 (20Hz ~ 20000Hz, 1%THD)
• Rated Power Output (2O, 14,4V) 60W x 4 (1000Hz, 1%THD)
• Bridged Power Output (4O, 14,4V) 130W x 2 (1000Hz, 1%THD)
• Rated Power Output (CEA-2006) 40Watts RMS x 4 at 4 ohms and 1% THD
• Low-pass Filter 50~200Hz (-12dB/oct)(B-Channel)
• High-pass Fliter 80Hz (-12dB/oct)
• Input Sensitivity 0.2 ~ 5V
• Input Impedance 10k?
• Signal to Noise Ratio 94dB
• Signal To Noise Ratio (CEA-2006) 80dBa (Reference: 1 Watt into 4 Ohms)
• Frequency response (+0dB, -3dB) 5Hz ~ 50000Hz
• Operating voltage 14.4V (11V ~ 16V allowable)
• Dimensions (WxHxD) 330 x 59 x 230(mm),
• Weight 2.7kg
• Current Consumption 19A