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Kenwood Car Audio KAC-PS404 - 550W 4 Channel Power AmplifierKAC-PS404
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Kenwood Car Audio KAC-PS404 - 550W 4 Channel Power Amplifier

5 Stars 5
Quickfind Code - 40193
Quick Summary:

Performance Standard series amplifiers are designed to be our best sounding amplifiers. They provide outstanding dynamics, holding the musical reproduction to the highest standard whether delivering impactful bass or the most detailed notes.

Condition: New


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  • Next Day Delivery available on all orders before 5pm Next Day Delivery available on all orders before 5pm
  • Easy Returns Easy Returns

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Key Features

550W 4 Channel Power Amplifier - Kenwood Car Audio KAC-PS404

Performance Standard series amplifiers are designed to be our best sounding amplifiers. They provide outstanding dynamics, holding the musical reproduction to the highest standard whether delivering impactful bass or the most detailed notes.

Download image of Kenwood Car Audio KAC-PS404 Click here for Image of Kenwood Car Audio KAC-PS404
Technical Specification
Amplifier Features:
  • Load Capability - 2Ω Stable
  • Maximum power output - 550W
  • Rated power output (4Ω) - 40W x 4 (4Ω)
  • Rated power output - 60W x 4 (4Ω)
  • Bridged power output (4Ω) - 130W x 2
  • CEA-2006 Compliant
  • Low-pass Filter
  • High-pass Fliter
  • Switched Mode Power supply - MOS-FET
  • Signal Sensing Turn-on
  • Line in - 4 RCA / Speaker level
  • Speaker level Input
  • Single Side Terminals
  • Die-Cast Aluminium Heat Sink
  • Rated power output (4Ω, 14,4V) - 40W x 4 (20Hz ~ 20000Hz, 1%THD)
  • Rated power output (2Ω, 14,4V) - 60W x 4 (1000Hz, 1%THD)
  • Rated power output (CEA-2006) - 70Watts RMS x 4 at 4 ohms and 1% THD
  • Low-pass Filter - 50~200Hz (24dB/oct)(B-Channel)
  • High-pass Fliter - 80Hz (-12dB/oct)A-channel only
  • RCA Input Sensitivity - 0.2 ~ 5V
  • Speaker Level Input Sensitivity - 4 ~ 12V
  • Input Impedance - 10kΩ
  • Signal to Noise Ratio - 100dB
  • Signal to noise ratio - (CEA-2006) 80dBa (Reference: 1 Watt into 4 Ohms)
  • Frequency response - (+0dB, -3dB) 20Hz ~ 50Hz
  • Operating voltage - 14.4V (11V ~ 16V allowable)
  • Maximum current consumption - 18A
  • Dimensions (WxHxD) - 335 x 56 x 204(mm),
  • Weight - 2.5kg
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Questions/Answers About This Product
  • Question: 01 August 2019
    Car: VW Transporter - <2004

    Hi, I have a pair of 8 inch Alpine speakers: Peak power: 280W, RMS power: 45W and a 12 inch sub, can probably take what ever I put through it. Will this amp have the power if i bridge the channel each


    i would recommend something slightly bigger for a subwoofer, i would recommend either the ipa1041 or the gmd8704

    Found Useful? Yes 

  • Question: 02 December 2018
    Car: Mercedes C - Class - 2000> (W203)

    Hi interested in an amp for my kenwood head unit not sure about how to fit there are 2 subwoofer plugs in the back the rest speaker wire will there be fitting wireing diagram ect cheers ivan

    hi ivan,

    limited instructions come with the product, they normally include a wiring diagram at a basic level however these are not individual to any vehicle so they are basic wiring diagrams. if your unsure of anything i would recommend professional advice or their fitting service.

    Found Useful? Yes 

  • Question: 11 June 2018
    Can you bridge this amp from a 4 channel to a 2 channel? Specification states it can do 130w @4 ohms x2. However, the back of the amp only shows channels 3&4 are bridgeable.


    yes you can run this amplifier in 2 channel but you would still need 4 rca input wouldnt you just be better running a 2 channel

    Found Useful? Yes 

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Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

542 546 Mansfield Road, Sherwood NG5 2FR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181