Sony Xplōd™ XM-ZZR3301

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

  • Sony Xplōd™ XM-ZZR3301


  • Sony Xplōd™ XM-ZZR3301

  • Sony Xplōd™ XM-ZZR3301


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Item #: 158ZZR3301

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Our take on the Sony Xplōd™ XM-ZZR3301

by Buck Pomerantz

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.

Sony's ZR Series XM-ZZR3301 amplifier features technology that'll help your music play cleanly, loudly, and without distortion. Active Thermal Control regulates the amp's internal temperature to prevent overheating, so your music won't shut down. The Dynamic Distortion Suppressor kicks in at higher volume levels to minimize harmonic distortions, so your bass stays clean.

This sharp-looking Sony delivers up to 600 watts RMS to your subs, so you will be feeling to your music. The low-pass filter optimizes your sub's performance, sending it the frequencies that make it sound its best in your enclosure. The bass boost adds extra kick to your bass-heavy tracks, while the subsonic filter blocks ultra-low frequencies that your subs struggle to reproduce.

Sony XM-ZZR3301

XM-ZZR3301 connection and control panel

See more info on this item


  • mono subwoofer amplifier
  • 330 watts RMS x 1 at 4 ohms (600 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • Dynamic Distortion Suppressor and Active Thermal Control
  • variable low-pass filter (50-300 Hz)
  • variable bass boost (0-10 dB at 40Hz)
  • Class-D amplifier design
  • frequency response: 10-300 Hz
  • speaker- and preamp-level inputs
  • 1 pair preamp outputs
  • fuse rating: 30A x 2
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 14-1/8"W x 2-1/4"H x 11"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
RMS Power Output (Watts x Channels) 330 x 1
Peak Power Output (Watts x Channels) 600 x 1
Power at 2 Ohms (Watts x Channels) 600 x 1
Bridged Power (Watts x Channels) ---
Minimum Impedance Bridged ---
Minimum Impedance Unbridged 2
Best Frequency Response 10-300 Hz
THD at Rated RMS Power 1%
Signal to Noise Ratio 65 dB
Input Voltage 14.4v
Amplifier Class D
Low-Pass Crossover Frequency 50-300
Low-Pass Slope (dB/octave) 12 dB/oct
High-Pass Crossover Frequency N/A
High-Pass Slope (dB/octave) N/A
Bass Boost 0-10 dB
Bass Boost Frequency 40 Hz
Fan Cooled No
Fuse Rating 60
Speaker Level Inputs Harness
Preamp Outputs 1 pair
Width (inches) 14
Height (inches) 2-1/4
Depth (inches) 10-15/16
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research
What's in the box?

Download owner's manual

  • Mono amplifier with two 30-amp fuses inserted in the chassis
  • 8.75" Speaker level input harness (has 4-pin Molex plug)
  • 4 Self-tapping screws (length=1/2")
  • Rubber terminal cover
  • Operating Instructions (Eng/Span/Fren)
  • Warranty sheet

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 open the box, verify contents, 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.

Inputs and Outputs Notes


Class D Amplifier: The XM-ZZR3301 amplifier is a Class D mono amp. Class D technology is a method to convert and amplify music signals with MOSFETs to high-speed pulse signals. Class D amps feature high efficiency and low heat generation.

Active Thermal Control: The ZZR3301 has an Active Thermal control which regulates the unit's operating temperature for stable, long-term playback at high volumes.

Protection Circuitry: This amplifier has 3-way protection circuitry which protects the amplifier in the following cases:

  • Thermal: Turns the amp off when the operating temperature is too high
  • Short Circuit: Turns the amp off when the speaker outputs are short-circuited
  • DC Offset: Turns the amp off when a DC current is generated

Dynamic Distortion Suppressor: The Dynamic Distortion Suppressor suppresses distortion that occurs at higher playback levels for clear bass reproduction.

LED: The amplifier has an LED strip on the top panel that glows blue when the amp is on. There is also an LED on the front panel that lights in green when the amp is on and red when the protection circuit is activated.

Low-pass Filter: The XM-ZZR3301 is equipped with a low-pass filter, continuously variable from 50-300 Hz, with a slope of 12 dB/octave. It is constantly active (cannot be switched off).

Subsonic Filter: The amp has a built-in subsonic filter, which eliminates extremely low frequencies which can rob power and cause damage to the speakers. The subsonic filter is variable between 6 and 70 Hz, with a slope of 12 dB per octave. Like the low-pass filter, the subsonic filter is constantly active.

Bass Boost: For added low frequency performance, the amplifier has a bass boost centered at 40 Hz, variable from 0 to 10 dB.

Terminal Cover: The XM-ZZR3301 comes with a rubber protective cap that slips over the power wire terminal strip to help prevent accidental short circuiting.

Inputs and Outputs Notes

Speaker Outputs: Although this is a mono amplifier, there are screw terminals for two speakers (each terminal is 0.35" wide). They are not stereo outputs, but summed (L+R) mono, and internally wired in parallel. If you connect two 4-ohm speakers to the amp, the amplifier will see a 2-ohm load.

Power/Ground Terminals: The power and ground screw terminals are 0.54" wide to easily accommodate 4-gauge wire.

Remote Terminal: The remote turn on screw terminal is 0.35" wide. Note: If you are connecting the amplifier to a head unit that does not have a remote output, and the speaker-level input harness is used, the connection to the remote terminal does not need to be made. The amplifier will turn on when a high-level input signal is detected.

Speaker-level Input Harness: The amp comes with a speaker-level input harness with a 4-pin Molex plug. This allows you to easily connect the amplifier to a factory radio or a receiver without preamp outputs.

Preamp Output: This amplifier includes a stereo preamp output, which allows you to send an unfiltered signal to another amplifier. Note that you must be using the line level input, not the speaker-level input, in order to use the preamp output jacks.


CEA-2006 Compliance: The specifications given by Sony for the XM-ZZR3301 amplifier comply with the new CEA-2006 Amplifier Power Standard from the CEA (Consumer Electronics Association). All manufacturers who comply with the standard can display the CEA-2006 logo on their product.

Minimum Impedance: The amplifier's minimum impedance is 2 Ohms.

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Sony Xplōd™ XM-ZZR3301 Reviews

Average Customer Review:

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5 out of 5

raw power

Written By Sam L, Kissimmee , FL on Saturday, February 08, 2014
I've had this amp for a year now and I haven't had any issues with it. ended up buying new speakers cause I blew my old ones. definitely get a capacitor if your going to push this amp hard, I have an optima redtop in a 02 maxima and had to get a capacitor..
lots of power , and never shuts off..
pushed my old speakers too hard and blew them , my fault .....
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5 out of 5

Sony Xplōd™ XM-ZZR3301

Written By j.d, bemidji,MN on Wednesday, October 19, 2011
yeah this thing BANGS!!...i got 2-12's and 2-10's hooked up but it runs at 1ohm ive been pondin 4 like 6 months nd im goin def,but yea the best yo im happy
5 out of 6 people found this helpful
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5 out of 5

Great Amp! A must buy!

Written By Jason, Dunn,NC on Thursday, September 29, 2011
Crutchfield Customer Review (What's this?)
I recently purchased this amp after my 900watt Kenwood amp fired. I have got to say you will be suprised on how hard it maintains and puts out GREAT bass to my 2 10' Alpine Type R's. I honestly was thinking that this would not put out as much bass as my 900watt Kenwood amp did but it went above and beyond. A great buy for the price you cant beat it. Thanks Crutchfield for helping me decide on the right amp and subwoofers! 5/5 MUST BUY!
5 out of 5 people found this helpful
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5 out of 5

Great Mono Amp

Written By Drew, Newport News, VA on Thursday, August 12, 2010
I recently purchased this amp to upgrade my old 300 watt alpine mono amp. Delivers enough power to push my 2x12" Kicker Comp CVRs hard. Provides clean bass and enormous power at a low price. I definitely recommend this amplifier, it has been great.
5 out of 5 people found this helpful
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5 out of 5

Sounds great, very powerful

Written By mikechicago, Chicago, IL on Friday, July 02, 2010
I've heard many people say that sony car audio isn't too good but i prefer to see things to believe it. and im glad i tested it for myself because this amp is great Ive got 2 12" kenwoods in a sealed box and it realy pounds. All in all a great buy.
6 out of 6 people found this helpful
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5 out of 5

Really Good!!

Written By Ben, Lexington,SC on Thursday, December 10, 2009
This is a really great amp with plenty of power, at least for my subs, and it looks sexy!! Very impressed with Sony and their product. Also feels very very durable and was very cheap. I got it hooked up to two sony xplod subs and it pounds the heck out of em! Amazing amp and I would recommend the xsl124p5b subs as well.
14 out of 16 people found this helpful
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