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JBL Concert Series 521F

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 car

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

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Item # 109CT521

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$61.84 pair

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About the JBL Concert Series 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
  • 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

Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.

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More details on the JBL Concert Series 521F

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Features & specs

General
Speaker Size 5 1/4
Design 2-way
Tweeter Design Dome
Impedance (Ohms) 3
Tweeter Composition ---
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

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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