N° d’article GX-A604_
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Caractéristiques Générales

Number of Channels 4 channels

Audio Specifications

Signal-to-Noise Ratio 93dB
Total Peak Power Output 435W
THD + N ;less than 1%
Frequency Response 20Hz-20kHz
Input Sensitivity 20mV-20V
Bridged Power Output 170W x 2 into 4 ohms
4-Ohm Power Output 60 Watts RMS x 4 channels
Variable Bass Boost 0 to + 12dB @45Hz
2-Ohm Power Output 85 Watts RMS x 4 channels


Width (in) 8-1/8
Depth (mm) 300
Height (mm) 52
Depth (in) 11-13/16
Width (mm) 206
Height (in) 2-1/16
  • 1 GX-A604 Amplifier
  • 1 Owner's Manual
Véritable centrale de 435 watts, quatre canaux large bande, le GX-A604 - avec des filtres actifs variables intégrés et un Bass EQ variable sur les canaux arrière - est certainement un outil de construction de système polyvalent. Avec toute cette puissance contenue dans 52 mm de haut, 206 mm de large et 300 mm de profondeur, le GX-A604 est facile à monter et peut être placé au cœur d'un système audio vraiment sophistiqué. Les caractéristiques incluent un radiateur en aluminium moulé, des filtres actifs intégrés et des circuits d'amplification des graves.

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GX-A604 est évalué 4.7 de 5 de 3.
Rated 5 de 5 de par Van Instalation and it is wicked I have just had this installed in my Companies delivery van and it is awesome, it is firing a pair of 3 ways as Mid and Tweeter which I will change for a pair of JBL's now and an 8inch passive sub and it sounds great, got to get a monorail for the sub and use the GX-A604 for my high range in the dash, I am a JBL Lover any ways, I use the 2 control 10's in my home cinema set up. I highly recommend this amp to anyone.
Date de publication: 2018-02-11
Rated 5 de 5 de par Great inexpensive amp! I'm using this amp driven by a JBL MS-8. The amp is a good step up from your typical 20W/channel systems. Very noticeable gain difference in that it plays loud and clean w/little distortion. Using 2 of 4 channels bridged for a passive sub and that works well too. Recommended.
Date de publication: 2016-11-17
Rated 4 de 5 de par Great Amplifier but... I bought this amp and it has a lot of settings. But if you are connecting 2 middle speakers with 1 subwoofer ( or as my case only 1 subwoofer ) you definitely need power capacitator to power up the amp, otherwise, it will drop off when you pump the volume up. It's heating up so it's better to mount it in open space not in closed box or confined space
Date de publication: 2018-03-02
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hello can I install this amp with two JBL GTO 939? thank you!

Posée par: RogerioSwiss
The amp gives 85 watts at 2 ohms while the GTO 939 requires 100W of power at 3 ohms which is a little short of power, you can still connect it to each other but they won't bring each other to their full potential.
Répondue par: Mario at Customer Service
Date de publication: 2018-08-27

Sir , my question is i have to install amplifire and subwoofer in volkswagen polo highline plus Amplifire - GXA604H peak power 1200w Subwoofer - gtx 1300T What gauge of wire i'll use?

Posée par: Gyan
Hi! Normally, if you are connecting the subwoofer to the amp, you could use an 8-12" gauge wire.
Répondue par: Nick F
Date de publication: 2018-05-31

What gauge of wire i'll use for gx a 604 1200 peak power

Posée par: Gyan
You will need 14-16 gauge wires for these amplifiers.
Répondue par: Dan E
Date de publication: 2018-05-30

Can i use this to power my 4 jbl gx602’s?

Posée par: Ibrahin99
Yes the GXA604 amplifier will work with the GX 602 speakers without any issues.
Répondue par: Nick F
Date de publication: 2018-04-04

Can the GX-A604 power my GTO 609c component speakers and GT5-12 subwoofer?

Posée par: airjao23
Yes, that would be no problem at all.
Répondue par: Mario at Customer Service
Date de publication: 2018-01-28

Hello. Does this amp work in 3 channels? having 2 straight for components and the other 2 bridged for a subwoofer? Thanks :)

Posée par: Max_Power
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Répondue par: Steven M
Date de publication: 2018-01-11

I'm using the GX-604 4 channel amp with 4 JBL 6.5" CS762 coaxial speakers. What should I have be level set to? 0.2v or 4.0v? Thanks

Posée par: Ainsley
Hi Ainsley, Thank you for the question. You might find the answer to your question in our Product Support FAQ and Knowledgebase Sections.  The link is located at the top of this page.  To submit a support case, please fill out the Contact Us form at the same location.
Répondue par: Danny HARMAN
Date de publication: 2018-02-09

Good day all, I'm planning to buy a GX 602 for the rear speakers, while GX 402 for front speakers of my compact car. Is this GX A604 suitable for this setup?

Posée par: Jarn
Hi the GX 602 and the GX 402 can handle 60W and 35W respectively while the GX A604 drives 60W at 4 ohms which would be too much for the GX 402 than it can handle.  I would suggest to choose a different speaker for the front that can handle 60W.  If you need further assistance in looking for a speaker,Please submit a case request at https://www.harmanaudio.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Répondue par: Mario at Customer Service
Date de publication: 2017-12-13
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