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Kicker ZX350.4 (10ZX350.4)

350W RMS, 4-Channel ZX Series Amplifier (ZX3504)

Discontinued
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This item has been discontinued

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Why Choose Kicker Amplifiers:

Kicker Always Exceeds Rated Power

Kicker Performance Audio has been around since 1980 and has been producing amazing products since then. Kicker’s drive to consistently produce products that not only are great but also push the standards of the car audio industry is very apparent in all series of their amplifiers. All Kicker amplifiers are CEA-2006 Compliant, assuring you are receiving a continuous certified RMS power rating. Kicker will always exceed the rated power because Kicker is notorious for under rating their amplifiers. So really you will be getting more power than you actually pay for, which is not true for other lower end performance amplifiers that generally over rate their amplifiers. Kicker amplifiers will provide a choice of three automatic turn-on modes; remote, DC offset, or signal sense, which make them compatible with any car audio system. Along with their high-density convection heat sink for extreme heat dissipation and high efficiency MOSFET power supply, Kickers amplifiers are great way to go when selecting the perfect amplifier for your car audio system.

  • ZX Series 4-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 60 watts x 4 chan.
    • 2 ohms: 90 watts x 4 chan.
    • Bridged, 4 ohms: 175 watts x 2 chan.
  • Max power output: 350 watts x 2 chan.
  • MOSFET power supply
  • LED power and protection indicators
  • Tuned Bass EQ (0-18 dB bass boost at 40 Hz)
  • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios
  • Eliminates unwanted noise in a system
  • Boost, gain, and crossover frequencies are top-mounted for easy access, and a handy protection indicator featuring a new flashing yellow low-voltage light enhances the end panel
  • Bridgeable operation
  • Speaker-level inputs compatible (switchable) through RCA connection, Kicker 09ZISL required and sold separately
  • Automatic turn on modes: remote, DC offset, or signal sense
  • Thermal, voltage, and short circuit protection circuitry
  • Variable high-pass filter (50-200 Hz, 12 dB/octave)
  • Variable low-pass filter (50-200 Hz, 12 dB/octave)
  • Frequency response: 20-20000 Hz
  • New front panel allows customization with decals
  • CEA-2006 compliant amplifier
  • Dimensions: 13-1/2"L x 9-5/8"W x 2-1/8"H
  • 8-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • Authorized Internet Dealer
  • 2-year Manufacturer's warranty

Extend your Kicker warranty to 3 Years when you install your new Kicker amplifier with a compatible Kicker power kit! For a limited time, you can register your Kicker amplifier and power kit to qualify for an additional year of coverage. This offer is only available through official Kicker dealers and will only last for a limited time. With this amplifier, the following power kits will qualify for the extended warranty program: Kicker 09PK8, Kicker 05CK84, Kicker 09ZCK8, Kicker 09PK4, Kicker 09PKD4, Kicker CK44, and Kicker 09ZCK44.

2011 Kicker Authorized Online Dealer and eBay Seller

Product History:

Kicker 10ZX350.4 thumbnail
(newest, current model)
Kicker 08ZX350.4 thumbnail
(previous model, replaced by Kicker ZX350.4 (10ZX350.4))
Kicker ZX350.4 thumbnail
(previous model, replaced by Kicker 08ZX350.4)

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

60 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

90 watts x 4 channels
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

175 watts x 2 channels
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison.

350 watts x 2 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

AB
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
4
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

700 watts
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is 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.

The RMS output figure is much more accurate than the peak rating when comparing products.

350 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
8 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
1%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Yes
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 200 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 200 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
95 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 18 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Optional (Accessory required and sold separately)
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
20A x 2 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
69%
4 Star
13%
3 Star
13%
2 Star
6%
1 Star
0%

Average Attribution Rating

Durability
4.3
Value
4.6
Features
4.5
Design
4.6
Usability
4.6
Buc Nasty

Detroit

Overall
Durability
Value
Features
Design
Usability
Rolling the dice

October 16, 2011

This amp sounds great when the car is not running. It sounds awesome and pushed my Kicker KS69's very well. However, it produced engine noise when the car was running. I used top quality connections and had it professionally installed by an authorized Kicker retailer / installer. Kicker acknowledges this issue and sent a list of fixes to their dealers, but none worked. I do not understand why they would continue to make/sell these with this known condition. Kicker is better than that. Anyway, I know not all vehicles will have an issue with this, and if you are willing to take a chance, you may end up with a nice amp. However there are other options out there. I exchange mine for the JBL GTO504, and the JBL sounds better.

2 of 2 found this helpful

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ian

ridgecrest, CA

Overall
Durability
Value
Features
Design
Usability
wow!

September 5, 2012

this overall is an amazing amp its pushing all my rockford power series speakers and when i eventaully have to much fun with it it will put itself into protection mode which is a good thing because i dont have to really worry about frying the amp. thanks sonic electronix

0 of 0 found this helpful

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Karl

West St. Paul, MN

Overall
Durability
Value
Features
Design
Usability
i love it.

July 22, 2012

I love this. I havent had any trouble with it, i have it mounted in my trunk and it works great never over heats doesn't make any weird noises just provides great power to my speakers.

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john

fort drum, NY

Overall
Durability
Value
Features
Design
Usability
Good product

June 25, 2012

I like this amp, it's affordable and has plenty of power, even enought to push my four door speakers on one channel and a sub on the other.

0 of 0 found this helpful

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Sergio

Laredo, TX

Overall
Durability
Value
Features
Design
Usability
Great Amp

June 13, 2012

I got this amp to replace the same one that got stolen from my truck, but when I came to order it from Sonic Electronix it was half the price the local audio shops where selling it for. So I got a great deal and the same great amp from kicker. I have it hooked up with four 6"x9" kicker speakers and they sound loud and clear even whit my kicker 12" pounding in the back. Kicker is a great product that I loved for years and Sonic Electronix has the great products, so you can go wrong whit that.

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armando

Guymon, OK

Overall
Durability
Value
Features
Design
Usability
okay

April 7, 2012

Good amp BUT one thing that I hate is that it sends too much bass to the tweets and the tweets messed up, but other than that it's ok but I will go for the Hifonics amps. They good as hell! The only thing that kicker is good for is their subs and speakers.

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Matt

Clinton, NC

Overall
Durability
Value
Features
Design
Usability
Loud & Clear!

March 23, 2012

This amp replaced a old off brand amp, and what a difference, I have it powering orion hcca 5.2 components and 2 sets of Kicker KS525 In a 2003 ford focus, i build a wall to mount the kicker speakers in and its LOUD, it sounds like i have a Clear PA outside my car, but its all coming from the inside. The only con that i can tell is that engine whine could be a problem, if i switch around my RCA's i have engine whine, but i found that for some reason the RCA's have to be a certain way not to have this annoying whine.

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Tim

Tucson, AZ

Overall
Durability
Value
Features
Design
Usability
Nice amp

February 21, 2012

I have this amp running my inside speakers and let me tell you, it's night and day from my other amp. I don't understand why others had so many problems with this amp, but I don't get feedback from my wiring in my car, but I used all stinger and I ran on the opp side so i wouldn't do that, kinda install 101, but I could have just lucked out on mine. This amp might be small, but has weight when you pick it up. My friend took the top off of his and told me it's like two amps in one. I would tell any one to buy Kicker. People tell me all the time that there subs blow all the time, but if you buy the 99.99 sub from Kicker it's not the CVXS or L7 so they can't take a lot of power and that is why they don't last.

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Mike

Bayport, NY

Overall
Durability
Value
Features
Design
Usability
Great Buy

December 2, 2011

I have a Kicker ZX350.4 amp that is hooked up to 4 Pioneer 4 way speakers and it is very very loud. I now can here the music I would recommend any Kicker product.

0 of 0 found this helpful

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Jarrod

Lebanon, PA

Overall
Durability
Value
Features
Design
Usability
Good Deal

August 1, 2011

Would def. recommend, Kicker amps are high quality & typically high price tags. This is a good deal on a very versatile amp.

0 of 0 found this helpful

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TJ

Aiken, SC

Overall
Durability
Value
Features
Design
Usability
Just Buy It

July 11, 2011

If you are looking for a 4 channel amp for highs look no further. I have 4 Infinity Kappas and once I hooked this amp up to them they absolutely scream and are crystal clear. I don't even have the gain up halfway either. Plus its a very compact amp you can fit it pretty much anywhere. Fits under the seat easily. 2 Thumbs up!

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Sean

Hyattsville, MD

Overall
Durability
Value
Features
Design
Usability
Features a plus economics a must

June 2, 2011

I would definitely recommend this amp from what I see so far. Even though I plan on changing my factory radio down the line it's giving me the range I wanted with the clarity I needed without breaking my pockets.

0 of 0 found this helpful

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Skeet

Buckeye, Louisiana

Overall
Durability
Value
Features
Design
Usability
Plenty a power

May 30, 2011

This amp has plenty of power to make my Kicker KS 6x9s and 5.25s scream. Great addition for your high end.

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caleb

wisconsin

Overall
Durability
Value
Features
Design
Usability
zx 350.4

May 15, 2011

Worked great when I got it for about 8 months then would randomly go into protect mode and if you let it sit it would sometimes come back out of it but if u tapped it it would come back on then about 9 months later the left front channel started cutting in and out about 2 weeks after this started occuring i got the mysterious blue smoke and then no more front speakers which was a bummer.

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joe

elizabeth, NEW JERSEY

Overall
Durability
Value
Features
Design
Usability
Kicker ZX350.4 (10ZX350.4)

April 17, 2011

This is a greant amp. This amp says 175 watts x2 , but really think it does 195 watts x2 great amp

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craigo

yucaipa, ca

Overall
Durability
Value
Features
Design
Usability
This Amp makes my system So loud

January 16, 2011

I went down to my local speaker shop and bought this Kicker amp. It looks small but its a real 350 watts ..no cutting it in half and the sound is unreAL I GOT Infinity Reference 5030cs, AND INFINITY DASH SPEAKERS as well and I got 2 10 inch JL Audio subs and a 1200 watt Sony Xplode amp and the sound is so loud I run my **** half way down. on the trem 5/10 and bass about 7/10 well i guess whatiam trying to say is, this is a smal amp but puts out the power of a beast ...Kicker does it right even check out the sounds on youtube .

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Accessory Tools and Products

Accessories added

NVX XKIT84 4-Channel 8-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire and this kit has everything you need!

Your Price $69.99

Kicker PK8 8-Gauge Wiring Kit

Great wire for your awesome new amp! Don't forget the RCA's!

Your Price $29.95

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $59.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $151.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

StreetWires FB8

8 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

NVX XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $23.99

Kicker K-Series RCA Interconnect Cable

19 ft. of 4-Channel RCA cable with dual twisted-pair conductors, hyper-flex technology, and gold plated contacts for maximum signal transfer!

Your Price $29.95

Kicker 4-Channel RCA Audio Interconnect Cable

4 Meters (13 ft.) 4-Channel K-Series RCA Audio Interconnect Cable

Your Price $19.95

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1250 Speaker Wire

50 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $29.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $37.99

e2 ECAP1 by Scosche - Mid-Level 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $49.99

Rockford Fosgate RFC1D - Top of the Line 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $99.99

SMD DD-1 Distortion Detector

Set the gain of an audio amplifier quickly and accurately

Your Price $149.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

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Product Summary

Manufacturer

Model Number

10ZX350.4

UPC

713034050865

Weight

9.25lbs

Internal SKU

10zx3504

Internal Product ID

21950

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Kicker ZX350.4 (10ZX350.4)