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JBL 521F

Concert Series 5-1/4" 2-way car speakers

Item # 109CT521

Bring on the big fun of being there live, but leave off the big price tag — that's the idea behind JBL's...

Find what Fits your vehicle

Bring on the big fun of being there live, but leave off the big price tag — that's the idea behind JBL's...

California customers:
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Item # 109CT521

Other options

Since 1974

Years of experience making people happy.

Free custom vehicle instructions

Installation help for your car, from our experts.

Articles, videos & DIY info

Decades of expertise at your fingertips.

About the JBL 521F

Strong sound at a strong price

Bring on the big fun of being there live, but leave off the big price tag — that's the idea behind JBL's Concert Series car speakers. Their Concert 521F 5-1/4" coaxial speakers deliver a strong sound with a striking design, accented by JBL's "exclamation point" logo on the tweeter. And the speaker's patented Plus One™ structure extends the surface area of the polypropylene woofer cone to give you a better low-frequency experience.

Strong sound at a strong price

Bring on the big fun of being there live, but leave off the big price tag — that's the idea behind JBL's Concert Series car speakers. Their Concert 521F 5-1/4" coaxial speakers deliver a strong sound with a striking design, accented by JBL's "exclamation point" logo on the tweeter. And the speaker's patented Plus One™ structure extends the surface area of the polypropylene woofer cone to give you a better low-frequency experience.

A match for any system

These 3-ohm speakers are sensitive enough that you can power them with an aftermarket stereo, but you'll get even better results feeding them power from an outboard amp.

Grilles are not included; the factory grilles should be suitable for most applications.

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Product highlights:

  • 5-1/4" 2-way speakers (pair)
  • polypropylene Plus One™ woofer cone
  • PEI dome tweeter
  • handles up to 40 watts RMS (120 watts peak power)
  • frequency response: 75-20,000 Hz
  • impedance: 3 ohms
  • sensitivity: 91 dB at 2.83V
  • top-mount depth: 1-13/16"
  • grilles not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # SPKCON521FAM

What's in the box:

  • Two 2-Way speakers
  • Installation instructions
  • Template on box

Featured video:

Customer reviews

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JBL 521F reviews

Average review:

83 reviews

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More details on the JBL 521F

Pat M.

Features & specs

General
Speaker Size 5 1/4
Design 2-way
Tweeter Design Dome
Impedance (Ohms) 3
Tweeter Composition PEI
Woofer Composition Polypropylene
Woofer Surround Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 91
Frequency Response 75 - 20k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 40
Peak Power Handling (Watts) 120
Top-mount Depth (Inches) 1 13/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 4 7/16
Mounting Height (Inches) 0.313
The JBL 521F replaces these items:

Product Research

Features

Plus One+ Woofer Cones: Each speaker uses a cone larger than other speakers of the same size. This is accomplished by using a unique basket design and hi-roll surround. The Plus One+ design offers greater bass output and an increase in efficiency.

High-Output Design: The 3Ω voice coil design compensates for the high in-line resistance of small gauge factory wiring, extracting more power from factory (or aftermarket) receivers. This results in clearer, richer sound for the listener.

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Customer Q&A

10 questions already asked

Q
I just installed these JBL 5.25 Concert Series speakers into the dash on my '03 Caravan. The original factory speakers were only fastened by 2 screws, and of the 4 holes on the speakers, they don't line up with the factory holes. How do I make these fit, or should I return for another pair? Plus the other 4 speakers I purchased were jbl Club series, does that matter much? Thank you.
[ Patrick  Jan 11, 2023 ]
1 answer
A
Our tech support team will be happy to review the installation to see if there is a means to make these speakers work. If not, our advisors will be happy to make another recommendation. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website.
[ Nemo  Jan 11, 2023 ]  Staff
Q
Will the boss elite drive these ok ?
[ Doc  Dec 30, 2022 ]
1 answer
A
Greetings Doc, and thank you for your question. The Boss stereos have as much amplification as most aftermarket stereos would have. The JBL speakers are some if not the most efficient speakers, but if you really want great sounding speakers, they should have more power from an external amplifier.
[ Thomas J.  Dec 30, 2022 ]  Staff
Q
I know I have a JBL speakers in my 03 Limited Highlander, but donâ??t know whether itâ??s a concert or a stadium type or whatever type of feature type it is. How can I tell?
[ Freddie F  Sep 18, 2022 ]
1 answer
A
Often the factory JBL systems won't state what type they are and unfortunately we don't have that information either. You may be able to get that information from a dealership.
[ Arielle  Sep 19, 2022 ]  Staff
Q
Wait itâ??s saying it would fit my lower front door and my top corner ones do I have to bye 2 different ones or how ?
[ Juvenal  Jul 20, 2022 ]
1 answer
A
Depending on your vehicle Juvenal, this JBL 521F Concert series 5 1/4" 2 way speaker may fit multiple locations. Since you only get a pair, you might have to buy multiples if you are replacing more than just the lower front door pair. If you are having issues online with our Vehicle guide or any of the package builders, you can always give us a call at 1-800-324-9695 and we can get you hooked up!
[ Bo  Jul 20, 2022 ]  Staff
Q
I want these for my scion tc 2006 passe speakers, do i need to purchase a compatible connector?
[ Susiq  Mar 31, 2021 ]
1 answer
A
We do offer speaker wiring harnesses that allow new speakers to be plugged into the stock wiring. The issue we face is that we do not have a mounting bracket to hold them into the stock locations. I recommend contacting an advisor by calling 1-800-324-9695 to get a recommendation on speakers that we can get mounted in it.
[ Paul  Apr 15, 2021 ]  Staff
Q
Is an amp required for these speakers?
[ john  Apr 21, 2020 ]
2 answers
A
I don't know about amp requirements. I just replaced my original speakers. JBL speakers working good.
[ Yevgeniy  Apr 23, 2020 ]
A
No these speakers sounds great with a good radio.
[ Cam  Apr 21, 2020 ]
Q
Do I need an amp for these speakers?
[ john  Apr 14, 2020 ]
4 answers
A
Not if you are replacing the head unit. If you are using the factory Chrysler unit you will need an amp.
[ MICHAEL T  Apr 29, 2020 ]
A
I don't think you needed to unless you listen to really loud music. I just upgraded my Highlander with a 20 watts Alpine Apple CarPlay unit and 4 of the JBL Series 521F speakers and the sound just fantastic. It sounds very clear at a decent volume. I was about to install an additional amps unit but after listening to the new unit at a very high volume I think it would be more than I need. I hope that would help u with your questions.
[ Eric  Apr 27, 2020 ]
A
No
[ Zachary St.  Apr 27, 2020 ]
A
Yes, will not work properly with factory deck and amp, replace entire system if anything, speakers are great just the crossover gets messed up with OEM equipment
[ DON P  Apr 27, 2020 ]
Q
Do I need an amp for these speakers?
[ john  Apr 14, 2020 ]
2 answers
A
Only if your stereo doesn't have the power output you need for the volume you want
[ David  Apr 21, 2020 ]
A
You can definitely get better sound through an amp but most head units have power that drives these just fine
[ DANIEL  Apr 21, 2020 ]
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JBL Club 522F
Club Series 5-1/4" 2-way car speakers
On backorder
28 reviews
$99.95 pair
Add to cart

Upgraded tweeter

The JBL Club 522F offers these features:
  • edge-driven silk dome tweeter
  • handles up to 45 watts RMS (135 watts peak power)
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