KAC-6404
4/3/2 Channel Power Amplifier

Adding an amplifier like the KAC-6404 can bring new life to any audio system. This 4-channel amplifier will dramatically improve sound quality with 500 watts of power and features like MOSFET switching and built-in variable low-pass and high-pass filters.

General Features
500 Watts Maximum Output Power
CEA Rated: 40W x 4 (1.0% THD+N) (4Ohm)
60 Watts x 4 (2 Ohm)
130 Watts x 2 (4 Ohm Bridged)
MOSFET power supply
Preamp and speaker-level inputs
Fuse rating: 25A x 1
13-3/4"W x 2-3/8"H x 9-1/8"D

Specifications
Amplifier Type Class-AB
Band Reject Filter -
Band Reject Filter Frequency -
Bass Boost Circuit -
Bass Boost Frequency-Hz
Channel Design 4-Channel
Cooling System -
Current Consumption19A
Delay Control -
Frequency BAND 1 (Front, Rear) -
Frequency BAND 2 (Front, Rear) -
Frequency BAND 3 (Front, Rear) -
Frequency BAND 4 (Front, Rear) -
Frequency BAND 5 (Front, Rear) -
Frequency Response5K - 50Hz
Gain (Boost or Cut) -
High-Pass Filter Frequency (-24 / -12 dB/oct.)Low Range50-200Hz (Variable)
High Range50-200Hz (Variable)
Infrasonic FilterHz, Hz, -12dB/oct
Input Impedance10 Ohm
Inputs2 x RCA & High-Level
Installation Size (W x H x D)13" x 2-5/16" x 9-1/16"
330 mm x 59 mm x 230 mm
Installer MemoryNo
LED Information DisplayVoltage, Current, Temperature
Low-Pass Filter Frequency (-24 / -12 dB/oct.)Low Range80--Hz (Variable)
High Range80--Hz (Variable)
Maximum Output Power500 Watts
Operating Voltage14.4 V (11 - 16 V Allowable)
Output1-channel RCA
Phase Inverter -
Power Supply Single Power Supply
Power Wire Gauge 4-Gauge
Protection CircuitYes
Quality Factor BAND 1 - BAND 3 -
Quality Factor BAND 4 - BAND 5 -
Rated Output PowerRated Power Output(12.0V)
4Ω -W x -
2Ω -W x -
Bridged4Ω -W x -
1Ω -W x -

Rated Power Output(14.0V)
4Ω 40W x 4
2Ω 60W x 4
Bridged 4Ω 130W x 2
1Ω -W x -
Remote Bass Control -
Sensitivity0.2V - 5.0V
Signal-to-Noise Ratio94dB
80dBA (Ref: 1 Watt into 4Ohm)
WARRANTY1 - Year Parts & Labor
Weight5.9 lbs (2.7 kg)
RMS Watts Per Channel @ 4 Ohms, 1% THD+N40W x 4