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JBL GX-A604 4-Channel Full Range Amplifier

4.4 4.4 out of 5 stars 340 ratings

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4-Channel Amplifier

Purchase options and add-ons

Item Dimensions LxWxH 13.98 x 17.64 x 10.43 inches
Voltage 60 Volts
Manufacturer Harman Kardon
Mounting Type Surface Mount
Brand JBL

About this item

  • 60W RMS X 4 into 4-Ohm
  • 85W RMS X 4 into 2-Ohm
  • Cast-aluminum heat sink
  • Built-in electronic crossover networks
  • Switchable bass boost
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JBL GX-A604 4-Channel Full Range Amplifier
JBL GX-A604 4-Channel Full Range Amplifier
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Price$169.95$199.99$135.41$118.95-42% $179.00
New Price:$309.95
$83.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Value for money
4.3
3.9
4.0
4.6
3.8
Sound quality
4.1
4.1
3.5
4.5
3.7
Quality of material
3.8
4.0
4.9
Sold By
Watts and Volts (we track SERIAL #s)
CTSounds
Amazon.com
Alphasonik
Amazing Dealzzz
24 HOURS STOP
number of channels
4
4
4
4
4
4
voltage
60 volts
14.4 volts
14.4 volts
15 volts
mounting type
Surface Mount
Surface Mount
Car Audio
Surface Mount
Car
Surface Mount

What's in the box

  • Amplifier^Manual
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    Product Warranty: For warranty information about this product, please click here

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    JBL

    JBL GX-A604 4-Channel Full Range Amplifier


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    Product Description

    A 435-watt, four-channel, full-range powerhouse, the GX-A604 -with on-board variable electronic crossovers and variable Bass EQ on the rear channels -is certainly a versatile system building tool. With all that power inside a 2-1/16" (52mm) high, 8-1/8" (206mm) wide and 11-13/16" (300mm) deep package, the GX-A604 is easy to install yet can serve as the foundation of a truly sophisticated sound system

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    340 global ratings

    Customers say

    Customers like the sound quality, quality and performance of the electronic component amplifier. For example, they mention it adds several layers of sound, works brilliantly, produces powerful and clean sound, and works well with 2 speakers and a small subwoofer. That said, some complain about the heat.

    AI-generated from the text of customer reviews

    24 customers mention20 positive4 negative

    Customers like the sound quality of the electronic component amplifier. They say it adds several layers of sound, is extremely loud, and is clean. Some mention that the speakers are solid and clear, and don't seem to color the sound.

    "This product works so beautifully it adds several layers of sound to my audio I love it can’t live without it now...." Read more

    "...It pushes the 6.5's effortlessly, is clean, doesn't seem to color the sound, and controls cone movements accurately...." Read more

    "...It has a good solid build quality and is matched by it's sound. If you want a solid amp for your car speakers. This will do the job!" Read more

    "...Sound quality is awesome" Read more

    19 customers mention15 positive4 negative

    Customers like the quality of the electronic component amplifier. They say it's an outstanding, amazing, and quality product. Some customers also say it is a decent 4 channel class AB amp for the price. Overall, customers are satisfied with the quality and performance of the product.

    "Great little 4channel amp for 4 speakers in a car or boat. Would work well with 2 speakers and a small subwoofer as well." Read more

    "...No subs.Amp seems medical grade. It's better built than the jbl speakers are..." Read more

    "...It has a good solid build quality and is matched by it's sound. If you want a solid amp for your car speakers. This will do the job!" Read more

    "I can't give the whole review this time because my head unit sucks and has no RCAs so the connection is via a spliced harness and it is not the..." Read more

    14 customers mention10 positive4 negative

    Customers like the performance of the electronic component amplifier. They say it works brilliantly, produces powerful and clean sound, and would work well with 2 speakers and a small subwoofer. Some mention that it gets really hot really quick.

    "This product works so beautifully it adds several layers of sound to my audio I love it can’t live without it now...." Read more

    "...Would work well with 2 speakers and a small subwoofer as well." Read more

    "I received the amp from this company that did not work and went into protection mode as soon as it was installed. (Professional installation)...." Read more

    "...It plays C-L-E-A-N. It's pretty great for my set up. After I got this amp hooked up I noticed that my mirrors rattled just a little bit with bass...." Read more

    11 customers mention11 positive0 negative

    Customers appreciate the value of the electronic component amplifier. They say it's a cool budget amp with great sound for the price.

    "Good for the money mine came with the gain knobs almost all the way down so it took some tweaking to produce an acceptable volume but overall pushes..." Read more

    "Cool budget amp. Sounds great" Read more

    "Define worth the money! I’m not even using at full potential!" Read more

    "Great little amp. Produces powerful and clean sound. You get lots of bang for your buck. Highly recommend it." Read more

    4 customers mention4 positive0 negative

    Customers are impressed with the power of the electronic component amplifier. They say it has amazing power in a small size, and plenty of power to run a sub.

    "...It’s got plenty of power and more to run that maybe even a sub. I bought a separate amp but also JBL" Read more

    "...Works great for the application. Has great power for how small it is." Read more

    "Finally finished my installation. This little amp was great amazing power in such a small size." Read more

    "Very clear n powerful" Read more

    4 customers mention0 positive4 negative

    Customers are dissatisfied with the heat produced by the electronic component amplifier. They mention that it overheats and shuts down after about 90 minutes.

    "...this product to up my audio system in my car.. And it's just keeps overheating.. and shuts down...I have it in my trunk of my car... 1 star...." Read more

    "...It does get hot and I do not use it at full power. I think that also has to do with the crappy HU...." Read more

    "...my music loud but this amp shuts down after about 90 minutes and it is hot. I can cool it a bit by running the heater fan, but that is ridiculous...." Read more

    "Everything else is good but it gets really hot really quick..." Read more

    Great sound for the price
    5 Stars
    Great sound for the price
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    Top reviews from the United States

    Reviewed in the United States on April 21, 2021
    Style: 4-Channel AmplifierVerified Purchase
    5 people found this helpful
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    Reviewed in the United States on November 12, 2022
    Style: 4-Channel AmplifierVerified Purchase
    One person found this helpful
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    Reviewed in the United States on February 26, 2024
    Style: 4-Channel AmplifierVerified Purchase
    Reviewed in the United States on May 30, 2015
    Style: 4-Channel AmplifierVerified Purchase
    24 people found this helpful
    Report
    Reviewed in the United States on February 19, 2018
    Style: 4-Channel AmplifierVerified Purchase
    28 people found this helpful
    Report
    Reviewed in the United States on December 15, 2018
    Style: 4-Channel AmplifierVerified Purchase
    15 people found this helpful
    Report
    Reviewed in the United States on June 25, 2023
    Style: 4-Channel AmplifierVerified Purchase
    One person found this helpful
    Report
    Reviewed in the United States on June 15, 2021
    Style: 4-Channel AmplifierVerified Purchase
    One person found this helpful
    Report

    Top reviews from other countries

    Translate all reviews to English
    Eduardo Paz
    5.0 out of 5 stars Buen Equipo
    Reviewed in Mexico on July 22, 2019
    Style: 4-Channel AmplifierVerified Purchase
    Mr Arthur
    5.0 out of 5 stars Amazing
    Reviewed in Canada on March 22, 2019
    Style: 4-Channel AmplifierVerified Purchase
    One person found this helpful
    Report
    Alexandre Favreau
    5.0 out of 5 stars Awesome
    Reviewed in Canada on December 14, 2019
    Style: 4-Channel AmplifierVerified Purchase
    Jason kelly
    5.0 out of 5 stars Five Stars
    Reviewed in Canada on June 11, 2018
    Style: 4-Channel AmplifierVerified Purchase
    One person found this helpful
    Report
    Dennis Richardson
    4.0 out of 5 stars Great sound , runs hot
    Reviewed in Canada on December 7, 2021
    Style: 4-Channel AmplifierVerified Purchase