About the JBL 521F
Strong sound at a strong price
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.
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:
Featured review
Nice smooth sound and surprisingly punchy bass from these little speakers. Got them cheap as a scratch & dent deal but they were in perfect condition and sound great for what they are. For what I paid, I really don't see how you could do better.
Will from SEATTLE, WA
Customer Q&A
Q
Will the grill covers on my jeep sound bar fit these speakers?
A
Hmm. Let me think on that one awhile.
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More details on the JBL 521F
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 | |
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.
The JBL 521F replaces these items
- injection molded polypropylene and mica-reinforced composite woofer cone with rubber-coated cloth surround
- 1-3/16" PET dome tweeter
- handles up to 35 watts RMS (250 watts peak power)
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