If you are looking for car speakers that can deliver loud volume and plenty of bass, these JBL speakers are the ones you should get.
In this review, we feature the best JBL car speakers that can deliver extremely loud volume and bass output. These are designed as component speakers and can easily fit inside your car door and stereo sound system. We tested out these speakers with our OEM car audio system and found that they can deliver stellar sound performance even at low impedance – making them great for cars and trucks.
For the best JBL car speakers to get in 2021, be sure to check out our top picks below!
The Best JBL Car Speakers
The JBL GTO609C are some of the best JBL car speakers you can find that comes as a full component speaker set. We were very impressed with the frequency range that these speakers produce – with crystal clear highs, clear midranges and powerful punchy bass. They are the perfect speakers to replace your car OEM speakers and will not disappoint.
We really liked the fact that these speakers are low-impedance, with an impedance rating of only 3 ohms. This compensates for the undersized wires found in many cars and can make the most of every watt that your car stereo system can deliver.
With that said, we would recommend amping these speakers for better sound performance if you want greater sound and louder volume.
Sound quality wise, it’s hard to go wrong with these speakers. The sound is legit and the midbass response is excellent, while the lower midrange is accurate. The tweeters are accurate and deliver superb vocal performance.
With proper installation and a good car channel amplifier, the JBL GTO609Cs deliver some of the best car audio performance we’ve heard with crystal clear sound and loud volume, making them excellent picks for any car sound system that requires more volume and bass.
out of 10
The JBL GTO609C is the best JBL car speaker system available, delivering extremely loud sound performance with full range sound and deep bass
If you are just looking for coaxial speakers for your car door, the JBL GTO939 GTO series are a fantastic choice. This is designed as a 6 x 9 three-way loudspeaker pair that can deliver tremendous volume for your car audio. It also comes with a plus one woofer cone with rubber surround for that extra bass boost and deeper punch.
These speakers sound much better and louder than we expected for their cost. The highs are rich and crystal clear, while the lows and bass feels smooth and very deep. Vocals sound absolutely stunning on these speakers with very clear and crisp sound. The volume gets very loud and you can turn on the volume on these speakers without hearing any distortion.
Furthermore, these speakers are compatible with low-impedance car stereo systems. It has a 2 ohm impedance for use with legacy car audio systems and has a 300 watt peak power handling.
One thing we liked is that you don’t need to get a separate woofer for these speakers as they deliver superb bass performance. They are also easily mountable into your car door with a three-inch mounting depth.
Finally, if you need to adjust the sound, the GTO939 comes with an adjustable mylar-titanium tweeter and super-tweeter with level controls.
out of 10
The JBL GTO939 are some of the best coaxial car speakers around from JBL, delivering tremendous volume output and easy installation setup
The JBL Stage 9603 3-way coaxial car speakers are some of the loudest and most powerful JBL car speakers you can find on a budget. These speakers have a massive peak power of 420Ws max and 140Ws RMS, and can get extremely LOUD when you push it to its limits.
These speakers have incredible sound performance and are highly value for money. They fit perfectly inside the car door and sound great even on radio head unit power. Compared with other JBL 6×9 coaxial car speakers, the 9603s have a lot more bass extension and much better lows. It also features a PEI balanced dome tweeter and piezoelectric super tweeter that delivers crisp highs.
Mounting these speakers into the car is easy and straightforward. You can fit them directly into the factory holes without extra cutting (6×9 type holes). While these speakers can be powered by your car head unit due to its low impedance, they would definitely benefit from the addition of a car stereo amp.
We liked the fact that these speakers come with good installation brackets which fits easily into the speakers and car doors.
With proper setup in the equalizer and bass control settings, these speakers can literally make the whole car vibrate with loud sound performance and virtually zero distortion.
Overall, the JBL Stage 9603 are some of the loudest and cleanest speakers we’ve heard from JBL and are great options to upgrade your car audio system.
out of 10
Hands down the loudest coaxial car speakers from JBL, the JBL Stage 9603 have superb volume, crystal clear highs and a surprisingly deep low-end extension
The JBL CLUB6520 coaxial speakers are some of the best JBL car speakers you can find that deliver full-range sound performance. These are high-sensitivity speakers with 150 watts peak power and a plus one woofer cone for deeper bass. They are also low impedance (3 ohms) and can connect directly to your car OEM audio sound system.
The great thing about the CLUB6520 is that they are highly sensitive speakers and allow you to get good volume out of your car system. They are only 3 ohm, so even cheap factory wiring will power these speakers from your car factory settings. We recommend running an amplifier through these speakers for better load balancing and sound performance.
The speakers sound extremely crisp and clear. They do require a period of a few days to properly “break-in”, but once they do break-in, you can hear the bass clearly with a good level of thump. These speakers are built to handle high power and will take some time to adjust to using only deck power.
One thing to note when installing these speakers is to use the crossovers provided. You’ll need to take care in wiring the crossover for them to sound as accurate as possible.
There are some helpful videos on the JBL website if you need help with setting up these coaxial speakers.
Overall, we have no doubt that the JBL CLUB6520 are some of the best JBL car speakers you can find that deliver true sound performance, short of a full component sound system.
out of 10
With 150 watts of peak power and low-impedance, the JBL CLUB6520 is perfect for upgrading your car door speakers with full-range sound
If you are looking to upgrade your factory car speakers, the JBL CS762 speakers are a great choice. While they aren’t the most expensive, they still sound very good, and can be used together with low power amplifiers. The speakers have a power handling of 45 watts RMS and peak power of 135W, and can go very loud if you push them hard enough with a dedicated power amp.
The sound performance of these speakers is incredibly crisp. We were really impressed with the bass output and the overall clear sound from these speakers. JBL did a great job with the sound quality of these speakers at this price point. While the CS762 does have foam surrounds, they do not sound that different from the “higher-end” JBL speakers with rubber surrounds.
The only limitation with the CS762 speakers is the amount of power that these can handle, with a peak power of 135Ws. They do very well on car head units, with high sensitivity and good frequency response (with a range of 55 Hz to 20 kHz).
These speakers can fit into both the front and rear car doors (usually) without any additional trimming. The CS762 speakers can go very loud without any distortion, and sound much brighter the louder they get. The bass is pretty decent and its overall a very well-rounded speaker.
If you are looking for some of the best JBL car speakers that are affordable and deliver reliable sound performance, the JBL CS762s are the ones you should get.
out of 10
Probably the best JBL car speakers you can find on a budget, the JBL CS762 never fails to deliver with its 45 watt RMS and 135W of peak power
The JBL GX628 coaxial car speakers are some of the loudest JBL speakers in the GX model series, with 180W peak power and require a minimum voltage of 5W to operate. These speakers can fit most OEM car audio sound systems and can be easily installed inside your car door.
Compared with other JBL car speakers, the GX628 are primarily designed as loudspeakers for crystal clear sound reproduction. These are high quality speakers that can get very loud and deliver crystal clear highs and mids, bringing out the music performance in your car audio.
We’d also recommend pairing these speakers with a car amp to get the full potential out of these speakers. When properly amped, they sound pristine and very clear – with much better sound than any original car speaker system.
The GX628 has a nice frequency range of 50Hz to 21 kHz and comes with a plus one woofer cone to improve sensitivity while reducing distortion. These car speakers with a 2.3 ohms impedance which is relatively low, allowing you to pair these with your car sound system straight out of the box (although we still recommend amping these).
If you are in the market for coaxial car speakers, the GX628s won’t disappoint and deliver really loud and crisp sound performance.
out of 10
The loudest JBL car speaker in the GX model series, the GX628 delivers a massive 180W of peak power but requires more power from your car head unit to operate
While the JBL GX602 coaxial car speakers aren’t as loud as the GX628 speakers, they are still really good car speakers from JBL and are a solid upgrade for any existing car audio system. These speakers are really easy to install – all you have to do is pop the speaker grill off, pull out the old speaker and attach this speaker to the car door wiring.
The GX602 speakers have really decent power and some extremely good sound quality. The highs and midranges are crisp and crystal clear. While the bass on this speaker isn’t as loud as what you’d get on the GTO609Cs, they do produce some very decent volume and sound performance.
These speakers have decent power to it and can be powered by most car audio stereo systems with their low-impedance rating. They have an RMS power handling of 120 watts and peak power of 180 watts, and can get insanely loud without any distortion.
For better sound performance, you’d want to install a dedicated car amp just for these speakers. We also recommend a car subwoofer to add low-end bass if you listen to a lot of rock and EDM music.
The GX602 has a mounting depth of 2.06” and come with a plus one polypropylene cone for crisp sound performance.
If you are looking to upgrade your existing car audio sound system, the JBL GX602s are a great choice that you can find on a budget.
out of 10
While not as loud as the GX628 speakers, the GX602s are still a formidable set of coaxial car speakers that deliver superb volume with a peak power of 180 watts
The JBL Stadium GTO 620s are designed to deliver more bass and louder sound. These are some of the best JBL speakers to get if you want a car audio speaker system that comes with grilles, adapter rings, foam gaskets with an installation kit.
In terms of sound performance, the GTO 620 speakers deliver quite a lot of bass. The sound quality is loud and crystal clear, and you get crisp highs with detailed midranges with these speakers. We like the clean sound performance that the GTO 620 speakers deliver – and they sound great even though they are connected to any car stereo system.
Compared with other JBL car speakers, the GTO 620s come equipped with rubber surrounds and Plus One glass fiber cone woofers. They also have oversized 35mm woofer voice coils and edge-driven soft dome tweeters for higher quality sound performance.
The great thing about the GTO 620s is that they have a 2 ohm low-impedance design, so you can power them using your original car stereo sound system. That said, some amplification will greatly boost the sound performance of these speakers.
Overall, the GTO 620s are a pair of solid car audio speakers that deliver superb bass and crisp loud sound performance for your car.
out of 10
Designed for more bass response, the JBL Stadium GTO 620s come with rubber surrounds and plus one cone woofers for deeper bass extension
The JBL GT7 are really nice JBL car speakers that you can find on a budget. These speakers have an RMS power handling of 90 watts per pair, or 270 watts peak per pair. They can be installed with your car stereo system and can run on low-deck power (around 30-45 RMS), and yet deliver crisp and crystal clear sound performance.
You’ll be hard pressed to find other JBL car speakers as this price level that can deliver the clarity and sound performance of the GT7s. If you put enough power into this speaker through a dedicated amp, you will get even better sound performance and much louder sound.
Like all other JBL speakers, the GT7s require some time to be properly broken in. It took around 2 months before these speakers start to round off and sound much better with deeper bass. The sound remains consistently clear even at high volumes without distortion.
Installing these speakers is fairly quick – they are designed to fit inside most car doors and all you have to do is to wire them up. They feature a plus one cone and foam surrounds for sturdy sound performance (from our experience, there’s no noticeable difference between foam and rubber surrounds, apart from durability).
Overall these are some pretty solid JBL car speakers that you can get on a budget that sound great and are easy to install.
out of 10
With an RMS handling power of 90 watts (270 watts) peak, the GT7s are really nice car speakers you can find that deliver clarity and great sound
The JBL Stage 3527 are some of the loudest JBL car speakers you can find at an affordable price point. These are effectively car audio loudspeakers which focus on performance and fitment, and can be easily installed into OEM car audio sound systems. They also have a low impedance rating of 2 ohms which allow you to connect it directly to your original head unit without a dedicated amp.
The Stage 3527 speakers are very well designed. It’s equipped with a plus one woofer cone which delivers more volume (up to 2 dB more) and overall efficiency. There’s also JBL’s edge driven dome tweeter which delivers broader and smoother high-frequency response.
The sound performance of these speakers is much better than we expected. They have sweet highs, crystal clear vocals and detailed midranges. Best of all, these speakers get very loud, and can easily fill up your car or truck with rich sound performance just using the car stereo head unit without any amplification.
If you add amplification to these speakers, they can deliver even more volume and sound performance, with some pretty nice bass notes. While the bass isn’t as deep as we hoped, the highs and crisp midranges more than compensates for this.
The JBL Stage 3527 car speakers are highly durable speakers that come with a vented basket frame to cool the voice coils for prolonged use. They also look pretty sleek, and can be installed by replacing your car door speakers (there’s no need for additional cutting as these speakers are sized for most car doors).
out of 10
With a low impedance of 2 ohms, the JBL Stage 3527 delivers much louder sound and crystal clear vocals using your car head unit without further amplification