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The compact chassis of each Kicker IX Series amp hides a technical powerhouse. They use the same voltage-boost technology found in some electric-hybrid vehicles to achieve over 90% efficiency — which means you get more power from a smaller, cooler amp. Kicker combined this high-current design with Class D technology to unleash more wattage per cubic inch than just about any other amp around. And an IX Series amp runs so cool you can stack multiple amps together for a professional-looking installation.

The IX500.1 mono subwoofer amplifier delivers up to 500 watts RMS to your sub so you can enjoy a big kick to your music. You can use the subsonic filter to eliminate unwanted signals, and shape the bass with the low-pass filter. Noise-reducing technology removes interference from your car's electrical system as it enters the amp's inputs, so that your subs see the purest signal possible. Kicker includes a wired remote control so you can dial in just the right amount of bass boost from the driver's seat.

Product Highlights:

  • mono subwoofer amplifier
  • 275 watts RMS x 1 at 4 ohms (500 watts x 1 at 2 ohms)
  • variable low-pass filter (50-200 Hz at 24 dB per octave)
  • variable bass boost (0-18 dB at 40 Hz)
  • selectable subsonic filter (24 dB at 25 Hz)
  • wired remote bass level control
  • Class D design
  • CEA-2006 compliant
  • balanced differential inputs
  • speaker-level inputs (requires an optional adapter)
  • preamp inputs and outputs
  • 4-gauge power and ground leads and a 50-amp fuse recommended — wiring and hardware not included with amplifier
  • no onboard fuses — when installing multiple amps in a system, an additional 50-amp in-line fuse between the distribution block and the amplifier is recommended
  • optional IX mounting kit required for stacking amps
  • 9-3/8"W x 2-3/16"H x 8-1/2"D
  • warranty: 2 years (3 years when used with a Kicker amp wiring kit)
  • Our 60-day money-back guarantee

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Kicker IX500.1 Reviews

Average Customer Review:

4 Reviews

great amp!

Written by: andy from baltimore, md on September 2, 2012

Crutchfield Customer Review (What's this?)

I have this amp connected to a JL 10" W6 in an '06 Jetta GLI. The amp rocks! Sound is amazing and my wife and children hear me coming into the development!!!! I would highly recommend it for one sub.....



Powerful little amp!

Written by: Chris from Browns Mills, NJ on August 7, 2012

Crutchfield Customer Review (What's this?)

I purchased this amp to replace a Sony XM1S. Even tho both are rated 500 Watts RMS this Kicker is Louder than the Sony. Same car and subwoofer setup. A Bazooka dual 10" vented box. After about an hour of run time, This amp was warm. Not hot. This was purchased as an "Open Box" which the box was opened. However the amp was still factory sealed. Even the included accessories. Sam my advisor recomended that I try this amp. And I am Impressed. Eventually I will be contacting Sam Ext 3270 again for a Kicker subwoofer. Possibly an L3 12".

Pros: Size, Power, Not running hot at 2 ohm load.

Cons: Its listed as having a Selectable Subsonic filter. 25Hz. I dont see a switch.

Great amp!

Written by: Matt from Hawaii on February 14, 2011

Great amp! What can I say!! Got it pushing a single 10' compvt. Stays cool and efficent, hits hard. Will recommend it to friends that like smaller systems and want a stealth look. Just a little pricey though, I think. Aloha




Written by: DaveO from Vernon, CT on January 17, 2011

I picked this baby up for a good price and I would like to let you know it's a great little amp. I have a stock battery and if you crank it the lights do not dim, this is how efficient it is -yet pumps out a clean 512 watts RMS (QC Sheet). You just need to make sure you run 2 - 50 amp inline fuses (one near battery plus one right before it connects in). I Recommend a 50 amp mini ANL fuse at the amp and one at the battery if your only running this amp. The remote bass control knob works great as well. Very powerful amp with a small foot print and does not run hot.



Hands-on research

What's in the box?

Download owner's manual

  • Mono-Channel amplifier
  • Remote bass-level control knob
  • 20' Remote connector cable (with an RJ-45 jack on each end)
  • Four 2" self-tapping screws
  • Two 3/8" self-tapping screws
  • Metal bracket
  • 4 Flat washers
  • Hex-key
  • Instruction Booklet (Eng/Fre/Spa)
  • Certified Power Certificate

Product Research



Class D Amplifier Design: The Kicker IX500.1 is a mono-channel Class D amplifier, which uses digital switching to amplify audio signals. This design results in high efficiency and less heat. The Class D design also allows the IX500.1 to have a super-small footprint for fuel savings and increased cargo space.

Mono-Power Amp Design: The Kicker IX500.1 is designed with specific features to power your subwoofers with a frequency range between 25-200 Hz. The amplifier can handle impedance loads down to 2-ohm.

Note: This amplifier is not designed for full-range operation.

CEA 2006 Compliant: The Kicker IX500.1's power ratings are measured according to the strict standards dictated by the Consumer Electronics Association (CEA). These standards allow you to accurately compare the rated power output of all CEA 2006-compliant amplifiers, even if they come from different brands. Manufacturers who adhere to the standards can display the CEA 2006 logo on their products and packaging.

Kicker Livin' Loud Certified Power Certificate: The amplifier comes with a certificate that indicates the total maximum wattage of the particular amplifier, along with the model number, serial number, tested date, and whether the amplifier passed the total harmonic distortion, signal-to-noise ratio, and protection circuit tests.

Amplifier Rating: The Kicker IX500.1 mono-Channel amplifier is bridgeable (4-ohm), as well as 2-ohm stable in stereo.

  • 1-Channel (CEA 2006 Compliant): 275 watts x 1 channel RMS @ 4 ohms (25-200 Hz, 1% THD)
  • 1-Channel (2-ohm): 500 watts x 1 channel RMS (25-200 Hz, 1% THD)

Subsonic Filter: The Kicker IX500.1 features a 24 dB/octave subsonic filter fixed at 25 Hz. Ultra-low frequencies that cannot be reproduced by a subwoofer do not become sound but become unnecessary oscillations, which affect sound by causing distortion. These frequencies also waste amplifier power and can cause damage to speakers. The built-in subsonic filter cuts the frequencies below 25 Hz to improve the reproduction performance of the speakers by eliminating harmful distortion.

Auto Turn-On: The Auto Turn-On switch offers three options:

  • +12 V: The amp turns on when +12 volts is applied to the remote terminal.
  • DC Offset: The amp turns on when a 6 volt surge is detected on the signal inputs (from a speaker-level source); in this mode the amp's remote terminal acts as a +12 volt output to turn on another component.
  • Audio: The amp turns on when an incoming audio signal is detected; in this mode the amp's remote terminal acts as a +12 volt output to turn on another component.

Soft-Start Circuitry: The Kicker IX500.1 contains "soft-start" circuitry that lessens initial shock load when powering up the amplifier, and a muting circuit to eliminate audio distortion that might surge down the line.

Protection Circuitry: The IX500.1 has protection circuitry that will turn the amp off in the event of overheating, over voltage (power input), under voltage (power input), short circuit (speaker output), and over current (speaker output). If the Protection LED on the front side of the amp illuminates red, the protection circuit has engaged and the amp will not play until the problem is resolved.

Stackable: The optional Kicker IXSM stacking mount (206IXSM, sold separately) allows you to stack two Kicker IX-series amplifiers on top of one another.


Gain: To accommodate the varying range of signal levels coming from today's factory and aftermarket radios, the Kicker IX500.1 features an adjustable gain control (low level: 125mV-5V; high level: 250mV-10V). This means that no matter what kind of radio is connected to this amplifier, the appropriate gain control adjustment can be made to ensure loud, clear, distortion-free music.

Low Pass Crossover: The amplifier's variable low pass crossover can be set between 50 and 200 Hz; the crossover slope is 24 dB per octave.

Bass Boost: The bass boost circuit provides a variable (0-18 dB) signal boost at 40 Hz.

Remote Bass Level: The included wired remote bass-level control allows you to control the output level of the amplifier from the front of your vehicle. The wired remote bass-level control comes with a mounting bracket to mount it under your dash. The supplied 20' cable connects the wired remote bass-level control to the amplifier.

Note: The wired remote bass-level control measures 2.25" wide x 1.25" high x 2.375" deep.


Power Connections: The power and ground connections are set-screw terminals that will accommodate up to 4-gauge wire. The remote turn-on set-screw terminal will accept up to 8-gauge wire. The included Allen-wrench is required to tighten/loosen the terminals.

Speaker Outputs: The Kicker IX500.1 is equipped with one pair of speaker terminals. Both speaker terminals are set-screw terminals that will accommodate up to 8-gauge wire. The supplied Allen-wrench is required to tighten/loosen the terminals.

Line Level Input: The mono-channel amplifier is equipped with one pair of gold-plated RCA line level inputs.

Speaker-level Input: High-level inputs can be used when the source device doesn't have preamp level outputs. The same RCA inputs on the amp are used for either speaker-level or line-level connections. When a speaker-level signal is used, a speaker wire to RCA adapter is needed (item number 20609ZiSL, sold separately) and the Input Level should be set to High.

Line Level Output: The amplifier has a pair of gold-plated RCA line level outputs for feeding a full-range stereo signal to another amplifier. It is the same signal that is input through the line inputs. The amplifier's crossovers have no effect on the line level output signal.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.