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Kenwood Excelon XR600-1

Mono subwoofer amplifier — 600 watts RMS at 2 ohms (New Stock)

Item #: 113XR6001

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7 Reviews | 2 questions - 2 answers

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Super-slim profile, big-time power

Kenwood's Excelon XR600-1 mono subwoofer amplifier adds power and punch to your car's subwoofer system, as it powers your sub with up to 600 watts RMS. The XR600-1 can fit in many different places in your car because of its incredibly low profile — it's under 1-1/2" tall. Amazing.

Designed for optimum efficiency

Kenwood packed this amp with space-saving features. Class D technology reduces the size of the power supply, while the internal heatsink is tilted to reduce height without compromising the amp's cooling system. Recessed power and speaker wire terminals help to further reduce the amp's footprint, protect the connections, and give your installation a neat, professional look.

Controls for the best bass

This no-nonsense amplifier features a low-pass filter that sends the correct frequencies to your sub so it'll  play efficiently and sound its best. The amp also includes an adjustable bass boost that adds some low-end punch when you want it.

Product Highlights:

  • mono subwoofer amplifier
  • 400 watts RMS x 1 at 4 ohms (600 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • variable low-pass filter (50-200 Hz at 24 dB/octave)
  • adjustable bass boost (0-18 dB at 40 Hz)
  • Class-D amplifier design
  • frequency response: 20-200 Hz
  • preamp inputs and outputs
  • fuse rating: 30A x 3
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 8-11/16"W x 1-7/16"H x 8"D
  • warranty: 2 years
  • 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.

Kenwood Excelon XR600-1 Reviews

Average Customer Review:

7 Reviews

Awesome amp!

Written by: Andrew from Ann Arbor, Mi on February 3, 2016

Crutchfield Customer Review (What's this?)

This is a fantastic ampilifier! At first it confused me having 1 set of rca in, and 2 sets of speaker outs, but it works amazing. I have this amp powering two 4 ohm subs (shallow mount rockfords) and it does it like a champ! I am however disappointed by the screws for the speaker outs, one screw head (the part that the alan wrench goes in) had stripped as I was trying to loosen it to put 1 sub per set of speaker outs. Since 2 wires were already in I was able to just cut one off, but if I ever use this for another set up I have to make sure to leave myself plenty of wire so I can connect that terminal to another speaker/sub. Over very pleased with it, expecially for the price from the referbished model! The things brand new basically! Not even a scratch!

Pros: Small/compact Easy dial adjustments Very clean look with terminal screw covers Delivers power equally to subs

Cons: Screws seem cheap

Excellon XR600-1

Written by: Jimmy from Puerto Rico on July 20, 2015

Crutchfield Customer Review (What's this?)

Great amplifier for a 10 or 12 inch sub-woofer. I bought this amplifier because of the small size so I could fit it under my pickup truck seat. Don't be fooled by the size, it really move a sub woofer to get full rich bass in your ride.

Pros: Compact Size and powerful sound. Easy to Install.

Cons: None

Kenwood Excelon XR600-1

Written by: Minnesota from Indiana on June 22, 2015

Great, small form-factor amp. Powers my 2-ohm, Kicker CompS subwoofer perfectly. I did have to trim my 1-ought wire to fit, but that was expected.



best Lil amp

Written by: gewber from lapeer michigan on April 24, 2015

Best amp I've owned yet. I have my xr600-1 hooked up to an american bass xo 1544. And wow. That's all I can say. Other than it makes my trailblazer rattle and flex all over.

Pros: Too many to list.

Cons: None

small amp with a big power punch

Written by: p. kidd from richmond, va on July 15, 2014

I purchase only kenwood amps for the past 18 years. I ran this amp to my P3 and I can't believe this little amp does so much.



Kenwood Excelon XR600-1

Written by: brian w from columb I s ga 31907 on September 21, 2013

Crutchfield Customer Review (What's this?)

Sounds great I have this amp on a rockford t1 12



The little amp that could!

Written by: Kawizx9r from Monterey Bay, CA on March 2, 2013

I never submit reviews however that's changed now with my new Kenwood Excelon XR600-1. Just purchased it along with a 10" JL Audio W3 subwoofer and together they sound great!

I was a bit skeptical at first considering I've only owned one Kenwood amp in the past but this little thing puts out power! It took some time dialing everything in but once that was done, I was able to do a proper comparison against my retired JL Audio 500/1 slash amp. The two on the same subwoofer sounded nearly identical with the same 'oomph' and authority you'd expect from the slash amp.

Pros: Size Power

Cons: Price? I only purchased one. No sub-sonic filter

Hands-on research

What's in the box?

Download owner's manual

  • Mono subwoofer amplifier
  • Three 30-amp mini blade fuses (installed)
  • 4mm Allen wrench
  • 2.5mm Allen wrench
  • 2mm Allen wrench
  • Four 5/8" Self-tapping screws
  • Instruction manual (English/ French/ Spanish)
  • Warranty card

Product Research


CEA-2006 Compliant: CEA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4-ohm load, with 1% or less Total Harmonic Distortion plus noise (THD+N), and over a frequency range of 20 Hz to 20 kHz, when applicable (20-200 Hz for this subwoofer amp). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 allows consumers to compare car amplifiers and receivers on an equal basis. Using CEA-2006 criteria, the Kenwood XR600-1 is rated at 400 Watts RMS x 1 channel with a 78 dBA signal to noise ratio.

Specifications: The manual also lists these non CEA-2006 compliant specifications:

  • Power: 600 watts x 1-channel (into 2Ω at 100 Hz, with no more than 1% THD, 14.4 volts)
  • Signal to Noise Ratio: 100 dB (at rated power)

Mono-Power Amp Design: The Kenwood XR600-1 is designed with specific features to power your subwoofers with a frequency range between 20 and 200 Hz. This amplifier is not designed to power a full-range speaker.

Class D Amplifier Design: The amplifier design is Class D, which uses digital switching power supplies. The result is much higher efficiency (less heat generated) than Class AB.

Low-Pass Filter: The XR600-1 has a built-in 24 dB/octave low-pass filter, continuously variable from 50 to 200 Hz. The crossover is always engaged (it cannot be bypassed).

Bass Boost: The bass boost circuit is centered at 40 Hz; boost is variable from 0 to +18 dB.

Aluminum Heat Sink: The aluminum heat sink increases the amplifier's heat dissipation efficiency, increasing the life of the amplifier.


  • Input Sensitivity: 200mV-5V
  • Low-Pass Frequency: 50-200 Hz; continuously variable
  • Bass Boost: 0-18 dB; continuously variable

Inputs and Outputs:

  • Signal Input: one pair of RCA preamp inputs
  • Preamp Output: one pair of pass-through RCA preamp outputs; used to easily connect a second amplifier to the same signal feeding the XR600-1's input
  • Power: set screw terminal; accommodates bare wire up to 4-gauge
  • Ground: set screw terminal; accommodates bare wire up to 4-gauge
  • Remote Turn-on: set screw terminal; accommodates bare wire up to 10-gauge
  • Speaker Output: two pair of set screw terminals; accommodate bare wire up to 10-gauge; the two outputs are internally wired in parallel, making it easy to connect two subwoofers
  • Fuses: three 30 amp mini blade fuses

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.

Product reviews from the Crutchfield Labs

The Reference Fit line of amplifiers from Kenwood Excelon packs a ton of power into a small chassis. These amps hit hard and can fit into tight spaces, if needed. And with mono, 4-channel, and...

What are the Labs?

Customer Q&A

Crutchfield asked  
Why did you buy this?

Life long kenwood product user. Have not gone wrong yet. [ Robert  Jan 20, 2016 ]
price, size, reputation and ratings [ John  Jan 10, 2016 ]

2 questions already asked

The best settings will really depend on your set-up. If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the amp. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: Or try our online support center: [ Jeff  Jun 19, 2015 ]  Staff
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy  Feb 16, 2015 ]  Staff