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RMS Power/Channel More Information
The amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

General Features

More Information
Some amps include circuitry that allows you to boost the bass output, ranging from a knob or button that provides a set amount of boost, to a built-in parametric equalizer with many possible configurations and adjustments.
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If an amp generates a large amount of heat, a cooling fan can regulate the temperature to prevent the amp from overheating.
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Preamp outputs are RCA outputs that let you pass the preamp audio signal from one amp to additional amplifiers.
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Useful if you're adding an amp to a factory radio, or don't have enough preamp outputs on your aftermarket receiver. Speaker Level Input Types: Harness, Speaker Terminal, RCA.

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All Car Amplifiers

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  • Rockford Fosgate Prime R300-4

    4-channel car amplifier — 50 watts RMS x 4

    IN STOCK

    8 people say 

    • 150 watts RMS x 2 bridged
    • fixed high-pass and variable low-pass filters
    • preamp inputs

    Free Shipping

    $139.99 After $60.00 Price Break

  • MTX THUNDER75.4

    4-channel car amplifier — 75 wattts RMS x 4

    IN STOCK

    2 people say 

    • 200 watts RMS x 2 bridged at 4 ohms
    • variable high-pass filter on front channels
    • variable high- and low-pass filters on rear channels

    Free Shipping

    $145.99

  • Alpine KTP-445U Power Pack

    Upgrade any car radio to 45 watts RMS X 4

    IN STOCK

    61 people say 

    • runs off same power circuit as receiver
    • compact amplifier with universal plug for in-dash receivers
    • 45 watts x 4 at 4 ohms

    Free Shipping

    $149.99

    Scratch & Dent: $127.49
  • Alpine MRP-F300

    V-Power Series 4-channel car amplifier — 50 watts RMS x 4

    IN STOCK

    72 people say 

    • 150 watts RMS x 2 bridged
    • variable low- and high-pass filters
    • selectable bass boost

    Free Shipping

    $149.99 After $50.00 Price Break

  • Alpine MRP-M500

    Mono subwoofer amplifier — 500 watts RMS x 1 at 2 ohms

    IN STOCK

    95 people say 

    • 300 watts RMS x 1 at 4 ohms
    • variable low-pass filter
    • variable bass boost

    Free Shipping

    $149.99 After $50.00 Price Break

  • Alpine MRV-M250

    Mono subwoofer amplifier — 250 watts RMS x 1 at 2 ohms

    IN STOCK

    1 person says 

    • 150 watts RMS x 1 at 4 ohms
    • 200 watts RMS x 1 at 1 ohm
    • variable bass boost

    Free Shipping

    $149.99

    Open Box: $134.99
  • JVC KS-AX3204

    DRVN Series 4-channel car amplifier — 60 watts RMS x 4

    IN STOCK

    • 150 watts RMS x 2 bridged at 4 ohms
    • preamp and speaker-level inputs
    • switchable high- and low-pass filters

    Free Shipping

    $149.99

    Open Box: $134.99
  • Kenwood KAC-2404S

    4-channel car amplifier — 40 watts RMS x 4

    IN STOCK

    4 people say 

    • 130 watts RMS x 2 bridged
    • variable low-pass and fixed high-pass filters
    • preamp and speaker-level inputs

    Free Shipping

    $149.99

  • Kicker 12CX300.1

    Mono subwoofer amplifier — 300 watts RMS x 1 at 2 ohms

    OUT OF STOCK

    2 people say 

    Expected: 5/27/2013
    Reserve yours today
    • 150 watts RMS x 1 at 4 ohms
    • includes hardware for vertical mounting
    • preamp and speaker-level inputs

    Free Shipping

    $149.99

  • MTX Road Thunder RT250D

    Mono subwoofer amplifier — 250 watts RMS x 1 at 2 ohms

    IN STOCK

    4 people say 

    • 125 watts RMS x 1 at 4 ohms
    • variable low-pass and subsonic filters
    • preamp and speaker-level inputs

    Free Shipping

    $149.99

  • Pioneer GM-5500T

    2-channel car amplifier — 125 watts RMS x 2

    IN STOCK

    5 people say 

    • 400 watts RMS x 1 bridged
    • variable low-pass filter
    • preamp- and speaker-level inputs

    Free Shipping

    $159.99

    Open Box: $143.99
  • Rockford Prime R250X1

    Mono subwoofer amplifier — 250 watts RMS x 1 at 2 ohms

    IN STOCK

    1 person says 

    • 150 watts RMS x 1 at 4 ohms
    • variable low-pass filter and bass boost
    • preamp and speaker-level inputs
  • Sound Ordnance™ M-4100

    4-channel car amplifier — 100 watts RMS x 4

    IN STOCK

    25 people say 

    • 270 watts RMS x 2 at 4 ohms bridged
    • variable high- and low-pass filters
    • preamp inputs

    Free Shipping

    $159.99 After $20.00 Price Break

    Scratch & Dent: $135.99
  • Kicker 11DX300.2

    2-channel car amplifier — 75 watts RMS x 2

    IN STOCK

    1 person says 

    • 300 watts RMS x 1 bridged at 4 ohms
    • variable high- and low-pass filters
    • Class AB amp technology

    Free Shipping

    $169.99 After $10.00 Price Break

  • Kicker 12PX100.2

    2-channel amplifier — 50 watts RMS x 2 at 2 ohms

    IN STOCK

    1 person says 

    • extremely compact, weather-resistant amp for small cars, ATVs, boats, etc.
    • selectable high-pass filter
    • 25 watts RMS x 2 at 4 ohms

    Free Shipping

    $169.99 After $30.00 Price Break

  • Kicker 12PX200.1

    Mono subwoofer amplifier — 200 watts RMS x 1 at 1/2 ohm

    IN STOCK

    1 person says 

    • extremely compact, weather-resistant amp for small cars, ATVs, boats, etc.
    • 100 watts RMS x 1 at 1 ohm
    • switchable low-pass filter

    Free Shipping

    $169.99 After $30.00 Price Break

    Open Box: $152.99
  • MTX Road Thunder RT604

    4-channel car amplifier — 60 watts RMS x 4

    IN STOCK

    1 person says 

    • 180 watts RMS x 2 bridged
    • variable high- and low-pass filters
    • preamp and speaker-level inputs

    Free Shipping

    $169.99

  • MTX TH90.4

    TH Series 4-channel amplifier — 60 watts RMS X 4

    IN STOCK

    • 180 watts RMS x 2 bridged output at 4 ohms
    • variable high-pass/low-pass crossovers (40-400 Hz at 12 dB/octave)
    • preamp and speaker-level inputs

    Free Shipping

    $169.99 After $130.00 Price Break

  • Rockford Fosgate R250X4

    Prime Series 4-channel car amplifier — 40 watts RMS x 4

    IN STOCK

    1 person says 

    • 125 watts RMS x 2 bridged
    • variable high- and low-pass filters
    • preamp and speaker-level inputs
  • JL Audio JX360/2

    2-channel car amplifier — 110 watts RMS x 2

    IN STOCK

    5 people say 

    • 360 watts RMS x 1 at 4 ohms
    • variable high- and low-pass filter (50-200 Hz, 12 dB/octave)
    • speaker-level inputs

    Free Shipping

    $179.99

    Open Box: $161.99
View page: « 1 2 3 4 5 ... »

Car Amplifier Shopping GuideIf you want your music to be loud, amplifiers are definitely part of the picture. But an amp can do much more than just get other people's attention.

Video: Car Amplifier PowerWe describe the basics of deciding how much power an amplifier should have when you're trying to match it to your speakers or subwoofers.