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Kicker ZX650.4 (10ZX650.4)

650W RMS, 4-Channel ZX Series Amplifier (ZX6504)

Discontinued
|

We apologize

This item has been discontinued

  • ZX Series 4-Channel Class AB Car Amplifier
  • RMS Power Rating (@ 14.4V):
    • 4 ohms: 120 watts x 4 chan.
    • 2 ohms: 170 watts x 4 chan.
    • Bridged, 4 ohms: 325 watts x 2 chan.
  • MOSFET power supply
  • Wired remote bass level control optional (Kicker 10ZXRC)
  • 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: 20"L x 9-5/8"W x 2-1/8"H
  • 4-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 09PK4, Kicker 09PKD4, Kicker CK44, Kicker 09ZCK44, and Kicker 09PKD1.

Product History:

Kicker 10ZX650.4 thumbnail
(newest, current model)
Kicker 08ZX650.4 thumbnail
(previous model, replaced by Kicker ZX650.4 (10ZX650.4))
Kicker ZX650.4 thumbnail
(previous model, replaced by Kicker 08ZX650.4)
Kicker KX650.4 thumbnail
(previous model, replaced by Kicker ZX650.4)

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.

120 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.

170 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.

325 watts x 2 channels

Amplifier Specifications

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 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.

650 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.
4 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.
80A x 1 
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

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
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.4
Value
4.6
Features
5.0
Design
4.4
Usability
5.0

Old Dude

St. Louis, MO

Overall
Durability
Value
Features
Design
Usability

Kicker ZX650.4 For the WIN!

June 6, 2010

BUY THIS AMP!! Bought this amp from Sonic at the suggestion of Armen (customer service rep) because the JBL 4 channel amp I wanted was out of stock. Armen knows his doo-doo!! I am very pleased to say this amp is simply AWESOME! I am driving four (4) JBL GTO928 6X9 2-ways with this amp and they absolutely love it. The speakers are 2 Ohm each, rated @ 100 watts RMS, but the amp is rated @ 170 watts RMS X 4. The birth sheet indicates a total output power of the amp @ 707 watts RMS. At the tested power rating that's 177 watts RMS to each speaker. I believe this tested output was produced @ 14.4 volt with no current or voltage sag, so my system is producing a little less @ 13.8 volts, but still, significantly more wattage than the rated power handling of the speakers. I have two in the front doors, and two in the back deck of a 1993 Geo Prizm, (yeah I know), crazy huh? The sound is amazing complimented by the Alpine SWR 1042 sub in a ported box in the trunk driven by a MTX JH600 amp! My little car shakes and bumps so hard with this amp and set up and the speakers are crystal clear at ear bleeding volume levels. Do you think it's too costly? Well, quality sound comes from quality equipment and you get what you pay for. Take a look at the price, notice the "make an offer" tab? USE IT! You won't believe what you can get this amp for. Call customer service and hopefully you'll be lucky enough to reach Armen. If you do, you will be very satisfied with your shopping experience at Sonicelectronix. If you don't get in touch with Armen, ask for him! He will do everything in his power to make sure you get the best online deal you've ever made. Listen, kids. I'm an "Old Dude"(46) and I listen mostly classic rock and blues with some jazz sprinkled in the mix and I listen to all of it VERY LOUD. If you want an amp that will drive anything you want to run to its full potential, get the Kicker ZX650.4. Great features, more CLEAN power than rated, easy access to tuning, intercooler (this amp will get warm), great flexibility for tuning also. You can't go wrong. BUY IT before they're all gone at this great price.

10 of 10 found this helpful

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tony300c

miami fl

Overall
Durability
Value
Features
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perfet thanks

June 22, 2011

I'm a kicker customer and I'm very happy with my new ZX650.4. Very solid performer and high output!

0 of 0 found this helpful

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mike

Frost, TX

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Durability
Value
Features
Design
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nice amp low price

April 13, 2011

I have this amp running 4 sets of KAPPA PERFECT 6.1 with a Kenwood DNX9960 head unit. 2 Kicker L7's with a 1500.1 amp pushing the subs. In a Ram maga cab, the highs are clear and as loud as you can stand it. great amp. Sonic Electronix is the place to order from 3 day's your products are at your door

0 of 0 found this helpful

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KTM 263

Hillsborough, NC

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Durability
Value
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Design
Usability

Great AMP

December 13, 2010

I have this amp powering 4 Rockford T1652-S door speakers which are AWESOME, This Amp is clean looking and blends with my system, Only problem is when i crank it up It gets really hot like if you touch it its gonna sting kinda hot. But thats to be expected with any AMP. 4 Gauge inputs are nice for power wiring. I have my amp mounted vertically in my truck, My favorite thing about this amp is the amp control buttons on the front cover, I can easily adjust my gain or bass boost with my finger, my other amps are hard to get to and u need a flat head screw driver, ALL AMPS NEED THIS FEATURE. Overall good amp, I would buy this again, good price!

0 of 0 found this helpful

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Jose

Mansfield, TX

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Value
Features
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Excellent Amp!!!!!!!

October 4, 2010

Recently installed this amp and it pushes the two pairs of Alpine SPR-17S components with no problem. Kicker rates this amp at 650W, but the birth sheet on mine rated the amp at 712W! Does get a little warm, so I'm installing a fan to keep it cool. Other than that my music cranks the way I've been wanting to and Sonic came through with their service again. Be smart; shop with Sonic, you can't go wrong. Thanks!!

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT44 4-Gauge 4-Channel Wiring Kit

4-Channel 100% OFC Complete True 4 Gauge Amp Kit with RCA Cables and Speaker Wire

Your Price $99.99

Kicker PK4 4-Gauge Wiring Kit

Get a Kicker wiring kit to match your new Kicker amplifier! Don't forget the RCA's!

Your Price $89.95

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

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

Your Price $79.99

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 $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

StreetWires FB4

4 AWG / 4 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

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

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 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

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

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

AutoSound 2000 CD-104

Audiophile reference series test disc for evaluation of all audio components.

Your Price $11.99

XIX2025 Strapping RCA

0.25 Meter (0.86 ft) Hyper-Flex RCA cable w/ Serpentine-Cut Nickel Plated Connectors

Your Price $12.99

Product Summary

Manufacturer

Model Number

10ZX650.4

UPC

713034050872

Weight

13.50lbs

Internal SKU

10zx6504

Internal Product ID

21951

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 ZX650.4 (10ZX650.4)