Kenwood® KAC6407 - Class AB 4-Channel 550W Amplifier

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Universal Fit
Fitment Notes:
  • Not Vehicle Specific
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Product Details

kenwood Audio Accessories

Universal Class AB 4-Channel 550W Amplifier by Kenwood®. Want more sound and exceptional quality? This compact and tough Kenwood amp is designed to provide bullet-proof audio performance in your prized possession. Offering the latest modern features, this top-shelf amp delivers outstanding power and dazzling clarity for the most enjoyable listening experience regardless of a volume level.


Max Power: 550W
RMS Power: 40W x 4 (4 Ohms)
RMS Power: 60W x 4 (2 Ohms)
RMS Power: 130W x 2 (Bridged)
Signal to Noise Ratio: 100dB (Reference: Rated Power into 4 Ohms at 14.4V)
Frequency Response: 20Hz-50KHz (+0dB, -3dB)
Input Impedance: 10 kOhms
Speaker Impedance: 4 Ohms (2 Ohms to 8 Ohms allowable)
Bridged connection 4 Ohms to 8 Ohms allowable
Low Pass Filter: 50 - 200Hz (-24 dB / oct.)
High Pass Filter: 80Hz (-12 dB / oct.)
Dimensions: (W)13-3/16" x (H)2-3/16" x (D)8-1/16", (335 mm x 56 mm x 204 mm)
Weight: 2.7 Kg.


  • CTA-2006 Compliant
  • 2 Ohms Load Capability
  • Speaker Level Input
  • Signal Sensing Turn-on
  • Power MOSFET Switching Power Supply
  • Cast Aluminum Heat Sink Design

Kenwood® USA is a leading developer and manufacturer of consumer electronics and communication equipment. Founded in the United States in 1961, Kenwood USA is the largest sales subsidiary of Kenwood Corporation of Japan and is recognized by customers and industry professionals for providing products known for quality, performance, and value.

Part Number:

Warranty Information

Kenwood warrants that its Products will be free from defects in material and workmanship for 1 year from the date of purchase by the Original Purchaser. This warranty does not apply to any Products that have been subjected to misuse, mishandling, misapplication, neglect (including but not limited to improper maintenance), improper installation, or alterations.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

This part is universal

Product Reviews


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Kenwood® - Class AB 4-Channel 550W Amplifier
Kenwood® KAC6407 - Class AB 4-Channel 550W Amplifier
Average Rating: 3.8 of 5
3.8 of 5
Kenwood AMP for 4runner
This AMP fit nicely where stock amp was. It also had good instructions and nice adjustments for tuning.
DPosted by (Lindon, UT) /
2003 Toyota 4Runner
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