If you love bass, you'll love Kicker's ZX mono amplifiers. These high-end amps set the standard for powerful sound, with a distinctive look that'll make your installation stand apart from the crowd.

The ZX750.1 mono subwoofer amp will drive your subs with up to 750 watts of power. No inflated "peak power" ratings here — you can trust that this amp's CEA-2006 compliant rating reflects a true measure of its capabilities. The efficient Class D design draws less current and produces less heat than traditional amps, for reliable operation that won't strain your car's electrical system.

The built-in variable low-pass filter adjusts the amp's output to get the most out of your subwoofer, while a subsonic filter removes the extreme low bass that hampers system efficiency. Use the bass boost control to dial in the exact amount of low-end bump you're looking for, then use the included wired bass level remote control to pump up the volume right from the driver's seat.

Product Highlights:

  • mono subwoofer amplifier
  • 375 watts RMS x 1 at 4 ohms (750 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)
  • subsonic filter (12 dB at 25 Hz)
  • wired remote bass level control
  • Class D design
  • CEA-2006 compliant
  • speaker-level inputs
  • preamp outputs
  • fuse rating: 40A x 2
  • 4-gauge power and ground leads with 80-amp fuse recommended — wiring and hardware not included with amplifier
  • 14-3/4"W x 2-3/8"H x 9-11/16"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.

Kicker ZX750.1 Reviews

Average Customer Review:

25 reviews
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Awesome amp

Written By Trifone, San Antonio on Thursday, April 16, 2009

Crutchfield Customer Review (What's this?)

The amp goes down to 20Hz and the range of 50Hz to 200Hz is for the low pass filter. This is the best amp you can buy for the money and if you can still get it somewhere, DO NOT HESITATE!!!

Kicker ZX750.1

Written By Ced, Huntsville, AL on Thursday, August 14, 2008

5/5 for power
3.5/5 for not going below 50hz
3.5/5 for having fixed sub sonic frequency at 25hz
3.5/5 for power @ 4ohm load
5/5 for max current draw (two 40 amp fuses)

This is a very powerful amp. At 900 to 950 max watts it will almost certainly overpower the electrical system in your car. Getting a cap is not the best solution as that is just a band-aid that will soon prove inadequate. A better solution would be to do what is called the BIG 3 upgrade.
1. Run an additional 4ga or lower wire from your battery's (-) post to your car battery's ground location.

2. Run an additional 4ga. or lower wire form the (+) post on your battery to the (+) terminal on your alternator.

3. Run an additional 4ga. or lower wire from the (-) terminal of your alternator to it's original grounding point. This will allow more voltage and current to flow and it just looks cool under the hood. "Just my interpretation of Ohm's Law"

4. If that doesn't do it then it is time for a beefier alternator. Failing to do this in the long term will have an expensive and unnecessary impact on your cars battery, alternator, and Engine.

5. Do the Big 3 upgrade, get a second battery if you like listening while the engine is off, and don't waste money on caps.

Really good but a bad thing!!

Written By Dillon, Riverton, WY on Saturday, August 09, 2008

I got this amp today. There are many good things about it. I have it powering 2 infinity reference 1250w. (12''s). If you are after loud bass this is definatly for you. I listen to alot of rap. There is another review talkinga bout the 50-200hz response. Well. 50hz really is very very high. My old infinity 1600a amp was 20hz. Alot of the old notes im used to hearing are not there anymore and it isnt good. it sounds like the bass to songs is just noise, not an actual note.

So.. 5/5 for loudness.
3/5 for actual quality. This amp would be perfect if it had a low range of around 15-20hz instead of 50.

as the other person said DO NOT OVERLOOK THIS.

Kicker ZX750.1

Written By Chris, NJ on Wednesday, July 30, 2008

Crutchfield Customer Review (What's this?)

Great amp! I have one of these amps powering 2 - 12" Polk Audio db 124s. They sound amazing. A great buy for the price!


Written By Eric, Tucson, AZ on Tuesday, July 29, 2008

Crutchfield Customer Review (What's this?)

It works great and looks good!

Superb Power

Written By roadtrip1098, Winslow, ME on Sunday, July 27, 2008

Crutchfield Customer Review (What's this?)

This amp is connected to 2 Boston Acoustics G510-44 subs run at 4 ohms total. The Kicker Birth Certificate rated this amplifier at 940 Watts RMS which makes it ideal to run both of the subs. I have the subs mounted in a ported box in the back of my WRX. Even with the seats down and the doors open, the amp was pushing the subs hard enough to flex the rear quarter panels of my car. I recommend running a second battery in any Kicker system or at least a capacitor as the amps are very sensitive to undervoltage. Simply put, if I was looking to do another system I would buy this amp. If I was recommending an amplifier to a friend, it would be this one. I am a relatively lazy person and for me to take the time to write a review should say plenty about it's quality. In order for me to write about something I already own, it has to be amazing.

Buy this amp

Written By Richard, Snyder Texas on Tuesday, July 08, 2008

Just installed this amp along with the kicker compvr 12 dual vented box.
This amp is worth the money. Stay with kicker amps and subs you wont be

This amp kicks

Written By Fletch, NC on Saturday, June 14, 2008

Crutchfield Customer Review (What's this?)

I have two of these amps actually. One in my 07 Nissan TITAN running 2 10" Infinity Kappa Perfect subs in a sealed box and One in my 06 Nissan Sentra running one 12" sub in a slot ported enclosure. I am not sure which one is louder, but they are both loud and clear. I would recomend this amp to anyone.

Good solid amp!

Written By chad, Jonesboro,AR on Monday, June 02, 2008

Crutchfield Customer Review (What's this?)

I have two of these running two 10" Jlw3's at 375 4ohm.I'm really impressed with the sound quality and power.It hit so hard it split my dash in three spots.Not the amps fault just cheap Dodge manufacturing.Over all great amp will buy kicker again!


Written By Brian, STEVENSVILLE, MD on Saturday, May 24, 2008

Crutchfield Customer Review (What's this?)


Great amp

Written By david, Florida on Monday, March 24, 2008

This amp has some great power but just a little shy of what i need. it also doesnt quite hit those low notes. I have 2 10" type r's which can take 500 rms a piece and the amp is just a little short. I also have a 1.5 farad capacitor connected. But on the plus side ill push the amp at 75% for 20 minutes straight and it hardly runs hot. overall this amp is great for the price.

Search no more

Written By Mike, Richmond,VA on Saturday, March 22, 2008

Crutchfield Customer Review (What's this?)

I had a Rockford fosgate P3001 (300watts x 1) running 2 pioneer IMPP 12's
before deciding that I was still a little power hungry. Started searching
around for someting within my budget and,of course,crutchfield comes
through for me again. I purchased a beast of an amp. Never had
anything over 300 watts before so man am I happy now. I have this amp
running the Kicker ported box with 2 12" compVR's. Perfect match. Much
louder and deeper than my old system with ease. Never ever gets hot. On
a day that it rained earlier I noticed the beads of water vibrating on my
windsheild. Might I make a few suggestions? 1.Dynamat! I dont have any
yet but its in my near future. At mid to high volumes your trunk will sound
like its falling off. 2.Capacitor! I think at least a 2 farad for most vehicles
should do. I have an '04 Dodge Intrepid with 130 amp alternator and it still
dims lights even with 1 farad cap. I'm just going for the gold by buying a 5
farad. Can never have to much. And finally 3.Ear plugs. If you truly push
this amp you'll see why. Overall perfect amp. If you are searching for a
power house this is where you stop. Especially since the certified max rms
power is between 900 and 950 watts. Mine is 942. Even if you just want
about 300 watts
for the price of those amps compared to this one you might as well stop
here also. You'll
have your low end bump at a low volume as well as the power to blow your
friends away if need be all in one package. Also I know many of you may be
wondering like I was,unlike most other amps the remote bass level is NOT
a bass boost nor gain. It actually is more like the amps volume. It adjusts
from no sound at all to BOOM!!!!!


Written By D3ATHBLOOMS, South Carolina on Thursday, March 13, 2008

Crutchfield Customer Review (What's this?)

I got this amp and I can promise you it is well worth it. It's pushing 2 Kenwood KFC-W3011 12's in a 05 trailblazer and it's pretty amazing. Only have the gain turned up 1/3 of the way and unless you wanna get migraine headaches I suggest you don't go over half way. Plenty of power as the rating sheet said maxed at 925 watts. I will need a cap because it does dim the lights when I crank it. I think for the price you can't go wrong!


Written By Scott D., Killingly,CT on Tuesday, March 04, 2008

Crutchfield Customer Review (What's this?)

I have 2 of these in two different cars. One is pushing a single Kicker 12L7 and is loud and clean. The other is pushing a single Kicker 10L5 have to turn amp almost all the way down. Probably too much for this sub but I couldn't pass up the price. Have a JL 13W7 that will replace the 10L5 when I get the time to built a box for it. Worried about the performance and power rating for a small amp but was I wrong. You will not be disappointed with this amp!

this is one bad mamma jamma

Written By josh9413, st louis on Friday, February 29, 2008

no one should buy any other amp for bass then this one. Ive had it pushing two jlw3s and one mtx 7500 and it sometimes hurts my ears but im a bass head so i just roll my windows down, ha ha ha. i push this amp to sound levels i didnt think were possible with one amp. oh yeah by the way i ran at full blast for almost an hour and it didnt even get warm and my lights never flickerd at all.When i say full blast i meen only half gain but with my set up i would want to blow my subs.l

Terrible Terrible Lows (Way too high of a cutoff frequency)

Written By Patrick, St. Louis, MO on Tuesday, February 26, 2008

Crutchfield Customer Review (What's this?)

Cutoff frequency is 50Hz and my Kicker cvr12.2 subs can handle as low as 25 Hz. Before I bought, I saw a review just like this one but with so many good reviews I ignored it. DON'T IGNORE this review!!! I had an A8000V amp before this one and it handled frequencies MUCH lower than 50 Hz. Just to show how bad 50Hz is, even some regular door speakers today will handle 50Hz... That is some really high-end bass(not a good thing). I would say a good one-third of the songs on my iPod barely(some not at all) play through this amp because these songs that had bass with my old amp won't play bass with my new zx750.1. It just proved to me that the cutoff frequency of 50Hz removed all the low rumbling bass that I like most. ... PAY ATTENTION TO FREQUENCY RANGES WHEN CHOOSING AMP!!! They prove to be just as key to good bass as wattage does.


Written By kevaughn, brooklyn, New york on Monday, February 11, 2008

Crutchfield Customer Review (What's this?)

i have 2 of these pushing 2 solo baric L'7s and thet hit so hard i had to change my winsheild. furthermore i also have the zx 700.5 which is also exceptional.

Kicker ZX750.1

Written By ascalon, San Diego, CA on Friday, February 08, 2008

I have two Pioneer tsw301r subs. They used to be powered off a Pioneer GM7300 amp that came with a Best Buy bass package. The subs are good for their price range, but the amp was terrible.

I owned a zx 650.4 amp for my speakers before the 750.1, so I knew kicker was quality material. I had this bad boy hooked up for my two subs running at 4 ohms, and by God they sound a lot better, plus the amp doesn't even break a sweat! Plenty of good clean power at low impedance! My cheap pioneers BOOM like never before! After testing my system with new speakers, and subs again, I was spazzed out! Great amplifier, I very highly recommend it.


Written By AVholic, Dallas, TX on Tuesday, December 04, 2007

Crutchfield Customer Review (What's this?)

This is one powerful and very musical sub mono amp. Kicker QA rated my unit at 934 Watts of certified total maximum power output!!! It's like buying a ZX1000.1 for the price of ZX750.1. This is exceptional compared to my other Kicker ZX amps which were rated just fine: ZX400.1 certified @ 460 Watts and ZX350.4 @ 360 Watts. I have tried other brands in my past car audio systems. In my opinion, Kicker amps sound cleaner and are true to their power ratings (and even exceed it).

Right now the ZX750.1 drives a Polk Audio Momo MM2104 while the ZX350.4 drives four (4) Polk Momo MMC690


Written By teel23, LONGVIEW, TX on Monday, November 26, 2007

Crutchfield Customer Review (What's this?)


Big Bad Amp!

Written By John, Falls Church, VA on Wednesday, February 21, 2007

I just added this amp to my setup. System:

Alpine cda-9855 head
Infinity reference 6.5 front door speakers
Kicker ss-mb6 midbass in rear doors
Eclipse sw-7200 12 inch sub in 1.o cu/ft sealed box
Kicker kx-350 4 channel amp
Kicker zx-759 mono sub amp

This amp really rounds out my system and is even strong enough to overpower my sub. Actual RMS is 924 watts at 2 ohms! Only serious folks need to apply here. Don't put this amp with a factory system and expect to be able to integrate it well. Its seriously underrated just like my other kicker amp as well. I'm looking to change my single sub setup to a 2 sub setup since I have the power for it. Highly recommended. Don't forget to use quality wiring and a capacitor.

just awesomw

Written By willie, miami,fl on Saturday, February 10, 2007

I tell you know I have been a fan of kicker for a long time, in my old car i have 2 rockford fosgate 1000 pushing 4 12 pioneers and I thought it was the system of my dreams, I just got my new car and I went ahead and returned with kicker I purchased this amp and 2 L5 15's and is pushing them to the max and its not even turned up more the 60%. I have to say this is the best amp and the best system I ever had I was kind of scared at first because the amp looks so small and but its defintly worth the money I have awesome bass and quality sound. I would recommend it to any one willing to spend the money.

Great Amp, highly recommended for larger subs

Written By Jay, Central Texas on Saturday, February 03, 2007

I purchased one of these amps about a year ago and have used it to power my Kicker L7 15" subwoofer. I have absolutely no complaints about this amp. It pushes the 15" sub with ease on half gain and I currently have it at about 65% gain. Also, it never gets hot like my other amp did, which was a RF. This is a class D amp though and the other was class c (I think). It runs really cool, actually at room temp, unless it gets really cranked, which I do like to do occasionally, and it still only gets warm. I have only seen it get hot once, and that was after a 30 minute ride home at full blast (once again, with gain only at 65%!) It handles the L7 15" beautifully and can make it distort any time it wants to. The outside of the amp is very nice also, I love the small mesh breathers that facilitate cooling and I also like the fact that you can hide the wires under the side somewhat. I custom installed it myself using 4 gauge wire (at least 4 gauge is highly recommended for this amp) and mounted it on its side. I have it hooked up to my Alpine CDA 9851. I would definitely buy another amp like this if this one ever encounters any problems, although I doubt it will anytime soon. And, if you do decide to buy from Crutchfield, they will definitely be there for you and you will get the Kicker 2 year (which is very important) factory warranty, a definite plus!!

Awesome Power

Written By Alex, Bristol, CT on Wednesday, January 24, 2007

I just got my new system installed and it sounds awesome. I've got this amp hooked up to two 12" Kicker CVR's with kicker's ported box. With out a doubt the best system I ever had. I would recommend this amp for anyone who is willing to pay for quality and get it done right the first time. I made the mistake of buying a low end amp and ruined my previous system. But Kicker is an awesome company and now my system is just pounding. HIGHLY RECOMMENDED!!

I Love This Amp

Written By A-Hat, SP, North Carolina on Monday, October 09, 2006

this amp is crazy i have it hooked up to two l5 12's and have the amp turned up half-way this amp makes my subs beat harder than any of my friends!!!! The bass knob is cool too because you can use your head unit and the bass knob to increase and decrease bass....i wouldnt buy any other brand amp kicker's underrated... if you're having trouble deciding between this amp and another i would definatly go with this one....

Hands-on research

What's in the box?

Download owner's manual

  • Mono amplifier with two 40-amp fuses in chassis
  • 2 Spare 40-amp fuses
  • Remote bass level control
  • Metal bracket (for mounting remote bass level control)
  • 4 Large self-tapping screws
  • 2 Small self-tapping screws
  • 1 Allen wrench
  • One 11" speaker-level input harness
  • 19.5' Phone cable (has an RJ14 connector on each end)
  • Manual
  • Warranty Registration card
  • Certified Power certificate

Product Research

Inputs and Outputs


CEA 2006 Compliant: The ZX750.1'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 "Living 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.

Speaker-level Input: The high-level input connection is included to allow use with sources that do not have RCA preamp level outputs. Only one type of input signal (speaker-level or line-level) should be used with this amplifier.

Low-pass Filter: The internal low-pass filter can be adjusted from 50 to 200 Hz, and has a slope of 24 dB per octave.

Subsonic Filter: The subsonic filter allows the amplifier to block ultra-low frequencies that your subs can't reproduce, improving the efficiency of your speaker system. The filter is fixed at 25 Hz, and has a slope of 12 dB per octave.

KickEQ Bass Boost: The KickEQ bass boost circuit provides up to 18 dB signal boost at 40Hz.

Remote Bass Level Control: The Remote Bass Level Control lets you adjust the output level of the amplifier from anywhere in the vehicle. When attached to the mounting bracket, the Remote Bass Level Control has the following dimensions: W=2.204", H=1.171", D=2.253" (including the knob).

SORT (Short circuit, Over-voltage, Reverse polarity, Thermal) Protection Circuitry: The SORT protection circuitry guards against accidents and undesired operation. The Power LED on the left side of the amp glows green and the power indicator on top of the amp glows red when the amplifier is connected correctly and SORT has not been engaged. If the red Protection LED illuminates, SORT has been engaged and the amplifier is in protect mode until the problem is resolved.

Inputs and Outputs

Left Side of Amplifier:

  • +12V (power): gold-plated set screw terminal (accepts up to 2 gauge wire)
  • REM (remote turn-on): gold-plated set screw terminal (accepts up to 8 gauge wire)
  • GND (ground): gold-plated screw set terminal (accepts up to 2 gauge wire)
  • Fuse: two 40-amp fuses

Right Side of Amplifier:

  • Speaker Outputs: gold-plated set screw terminals (accepts up to 8 gauge wire)
  • High Level Input: Molex plug input for included harness
  • RCA Input: gold-plated RCA line input jacks
  • RCA Output: gold-plated RCA line input jacks
  • Remote: RJ14 jack for use with supplied Remote Bass Level Control

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.