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Customer Reviews

JBL 521F

JBL 521F Concert Series 5-1/4" 2-way car speakers

MFR # SPKCON521FAM

4.5 out of 5 stars
118 reviews
View this product
Good sound quality

Jose from Albany, OR on 7/11/2025

2002 Subaru Impreza WRX

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Huge improvement over factory speakers

Pros: Decent bass and midrange

Cons:

Crutchfield response on

0 of 0 found this helpful

JBL 521F

Kiran from CT on 4/4/2025

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Don't really know what to expect as of now, I put them in and they're significantly quieter than the front door speakers I have (they're JBL but my buddy before me doesn't remember what exact ones he put in), hoping they improve as they break in. Install was decent Volkswagen made it a little tedious

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0 of 0 found this helpful

JBL 521F

Nathan James from Arcade, NY on 2/24/2025

2008 Ford Taurus

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Great speaker super easy to install with the instructions they give you they are just all around great

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0 of 0 found this helpful

JBL 521F

Chandler from Portland, OR on 2/18/2025

2004 Volkswagen GTI

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Plenty of help on the install and awesome product

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0 of 0 found this helpful

JBL 521F

Eric from Austin, MN on 2/14/2025

2010 Ford Escape Hybrid

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Great price for great sound! Made it easy swap from factory speakers!

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0 of 0 found this helpful

JBL 521F

Jayden from China Grove, NC on 2/9/2025

2011 Jeep Wrangler Unlimited

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One speaker is bad

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Crutchfield response on 2/12/2025
Jayden, we're sorry you're having issues with your speakers. Whenever you are not completely satisfied with anything you purchase from Crutchfield, please contact our Customer Support team at 1-800-955-9091. Purchases from Crutchfield can be returned or exchanged within 60 days of the purchase.

0 of 0 found this helpful

JBL 521F

Mike from Knoxville, TN on 1/26/2025

2003 Chevrolet Silverado 2500/3500

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Installing was basically plug and play. Sound is good and exactly what I needed. Thanks crutchfield

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0 of 0 found this helpful

JBL 521F

Jeff from La Mesa, NM on 1/21/2025

2006 Honda Element

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great speakers, easy to install , I would recommend

Pros: easy , everything fit , worked just fine

Cons:

Crutchfield response on

0 of 0 found this helpful

Initially great, but went south fast.

Brett from KINGSVILLE, MO on 1/9/2025

2008 Mercury Mariner

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These sounded great for about a month. After that I started to notice tones previously sounding great had began to muffle or deteriorate. Not impressed at all, and convieniently passed the return window.

Pros: They look good

Cons: Lasting sound quality is not a thing with these. I loved my other speakers that were similar- these were a huge disappointment.

Crutchfield response on 1/22/2025
Once we saw this review, our Customer Support specialist, Nancy, reached out to Brett to set up a return. If you encounter a problem with anything you purchase from Crutchfield, it's important to contact our Customer Support or Tech Support teams right away. They can help you solve the problem or set up a return within 60 days of purchase.

0 of 0 found this helpful

Good speaker

Braden from Armour, SD on 12/18/2024

2007 Chevrolet TrailBlazer

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Very easy to install and sound very good for the price definitely happy with my purchase

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0 of 0 found this helpful

Easy upgrade from factory car door speakers, totally worth it!

Alan from GAINESVILLE, FL on 10/17/2024

2007 Toyota Sienna

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Surprisingly great sound despite these 5.25" round speakers replacing 6x9 factory JBL door ones. Highly recommend taking the plunge and applying sound dampening material as part of a modest upgrade from factory, because the reduced road noise lets these wonderfully crystal-clear drivers shine.

Pros: Excellent sound, surprisingly good compared to factory speakers.

Cons: Packet of dielectric grease would've been nice to have for this one-time upgrade to an old beater of a car.

Crutchfield response on

0 of 0 found this helpful

JBL 521F

Stuart from Chesapeake, VA on 10/13/2024

2017 Toyota 4Runner

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Everything was as advertised Perfect fit, and the wiring harness clip right in. Always been a great company to deal with never had any problems

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0 of 0 found this helpful

Speakers

Julia from Midland, OH on 7/29/2024

2000 Dodge Ram 3500

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The speakers were great. I am very happy with my purchase.

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0 of 0 found this helpful

JBL 521F

Jakob from Erwin, TN on 7/12/2024

1991 Mazda Miata

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Sounds great easy install everything was there i needed

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0 of 0 found this helpful

JBL 521F

Noah from Grand Island, FL on 7/11/2024

2015 Smart fortwo

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Was super easy to install in my 2015 Smart Fortwo and it sounds great when I added deafening strips to any gaps. Sounds like studio quality and the bass is just right overall the best speaker for the budget.

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Crutchfield response on

3 of 3 found this helpful

JBL 521F

Brian from Parkersburg, WV on 7/7/2024

2007 Toyota Tundra

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Sounds good

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0 of 0 found this helpful

Nice Speakers

Martin from Freeland, MD on 7/5/2024

2008 Ford Focus

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A nice set of speakers for not a lot of money. Installation was a breeze.

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Crutchfield response on

0 of 0 found this helpful

wrong size for trailblazer

Kayla from Ottumwa, IA on 7/4/2024

2004 Chevrolet TrailBlazer EXT

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The speakers were not the correct size but they sound good

Pros: nice sound, easy to install

Cons: wrong size for my 2004 Chevy Trailblazer ext ls

Crutchfield response on

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Eastford Ct on 5/30/2024

2007 Chevrolet TrailBlazer

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I needed a new pair of rear speakers for my 07 Chevy Trailblazer that has a factory Bose stereo without navigation. These JBL speakers are 3 ohms which is close enough for me. These things are loud and sound good except for the piercing treble. My solution was to put duct tape over the tweeters and that was perfect! Now there is a little audible treble but they sound like more of a midrange like they're suppose to.

Pros: Sound good and loud

Cons:

Crutchfield response on

0 of 0 found this helpful

JBL 521F

Hannah from Arvada, CO on 5/2/2024

2005 Toyota Highlander

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The sound is great! I bought a used car and one of the speakers was blown so the sound was super imbalanced and subpar. Crutchfield's instructions were super helpful and allowed me to replace my own speakers within an hour. Glad I finally have good sound again!

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Crutchfield response on

2 of 2 found this helpful

JBL 521F

Michael L from PEACHTREE CITY, GA on 4/2/2024

2001 Mercedes-Benz C-Class

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Great sound for the price!

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1 of 1 found this helpful

JBL 521F

Joseph from Barstow, CA on 2/26/2024

2000 GMC Sierra 1500

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Sound great easy installation

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0 of 0 found this helpful

JBL 521F

Braeden from Fairhope, AL on 1/30/2024

2006 Mazda 3

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Nice quality and great high ends

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0 of 0 found this helpful

2003 Silverado SS (extended cab) rear doors with bose

Destrey from Purvis, MS on 1/19/2024

2003 Chevrolet Silverado 1500

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Bought these to replace the rear door speakers in my 2003 Silverado SS (extended cab) I knew I would have to modify the door/speaker mount, but it wasn't much. Very happy with the results!

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Crutchfield response on
Customer review photo

3 of 3 found this helpful

Sounds Great!

Byron from Bixby, OK on 9/25/2023

2019 Ford Taurus

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Sounds amazing. Compliments the Sony sound system in my 2019 Taurus perfectly!!

Pros: Good bass, compliments the Sony system, perfect for!

Cons: Clumsy adapter

Crutchfield response on

0 of 1 found this helpful

Great for the money

Brian from Maryville, TN on 9/17/2023

2011 Toyota Sequoia

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Sounds really good, gives my other jbl front speakers a little more high range.

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Crutchfield response on

1 of 1 found this helpful

JBL 521F

Steven Brian from Hillsboro, OR on 8/23/2023

2015 Dodge Dart

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Crutchfield is awesome to work with but I found myself a little disappointed in the speakers. They're good, but in the car they sound a little more thin than they sounded in the online test listen.

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Crutchfield response on

1 of 1 found this helpful

Tiny but mighty

Henry from Commerce City, CO on 6/27/2023

2008 Acura MDX

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Crisp sound, small recognizable bass with out distortion when volume is high.

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0 of 0 found this helpful

JBL 521F

Gary from Windber, PA on 6/18/2023

2020 Ram 1500

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Sound great but a lot harder to install they I thought it should be

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0 of 0 found this helpful

JBL 521F

Justin from Douglas, WY on 6/18/2023

2003 Jeep Wrangler

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Super easy to install and big improvement over the factory originals. Will be ordering from Crutchfield again!

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Crutchfield response on

1 of 1 found this helpful

great option for under 100$.

Robert from Minneapolis, MN on 5/27/2023

2003 Chevrolet TrailBlazer

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Replaced a set of 4 OEM speakers with these, great sound & price point.

Pros: Good production quality, SQ, & Price point.

Cons:

Crutchfield response on

1 of 1 found this helpful

Highly Recommend

Chandler from Kalispell, MT on 5/23/2023

2005 Subaru Outback

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Got these speakers as well as some front door JBL's and I'm very happy with the purchase. Great sound quality!

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Crutchfield response on

0 of 1 found this helpful

Unremarkable but good

Chuck from Laurel, MD on 5/18/2023

2005 Honda Civic

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Used these to replace a speaker that had died. They're not arena sound, but they do the job for the right price. The connection terminals bent super easy when I connected the harness to them, so I had to be a bit more careful and straighten them back out to get the connector to seat firmly. This may be more user error than component design

Pros: Acceptable sound, inexpensive

Cons:

Crutchfield response on

0 of 0 found this helpful

Decent OEM Replacements

Aaron from Cottage Grove on 5/1/2023

1997 Lexus ES300

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Basic OEM replacements. They sound decent enough. pretty basic replacements speakers that work well with OEM equipment

Pros: Inexpensive. works well with standard equipment no amp needed

Cons: fairly basic

Crutchfield response on

1 of 1 found this helpful

Sound good in 2005 Honda Element

Kenneth from LOUISVILLE, KY on 2/11/2023

2005 Honda Element

Verified customer (What's this?)
Verified employee review (What's this?)

These speakers sound really good. However they are only 3 ohm impedance.

Pros: Sound good.

Cons: Crutchfield does not carry many 4 to 8 ohm speakers in the 5 1/4" size, except for the much more expensive ones. The Boss Stereo I bought at Crutchfield says to use 4 to 8 ohm speakers.

Crutchfield response on

0 of 1 found this helpful

Good price

Henry from Crawfordsville, IN on 1/30/2023

2010 Jeep Compass

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Good. Not as loud as I thought they may be, but I didn't really care about that. They both sound great and are better than the original factory speakers.

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Ian from Columbiana, OH on 1/17/2023

2011 Volkswagen CC

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Very impressed with these speakers, not big in size but definitely pack a punch with sound. Beyond happy with my purchase

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Crutchfield response on

1 of 1 found this helpful

Car adapter kits not great

Roy from East Wareham, MA on 1/5/2023

2006 Subaru Impreza 2.5i

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Verified employee review (What's this?)

Speakers are great, but Adapter kit from Crutchfield was not correct for the 2006 Subaru Impreza, so we figured out a different mounting system.

Pros: JBL 521's sound much better than stock.

Cons: Crutchfield speaker adapter kits not correct.

Crutchfield response on

0 of 0 found this helpful

Good product

Mikle from Cleburne, TX on 12/14/2022

2017 Ram 3500

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Great sound and fast shipping!

Pros: Fast shipping Good sound quality

Cons: None

Crutchfield response on

0 of 0 found this helpful

Worst Investment Ever

Ryon from Covington, GA on 12/11/2022

2002 Ford F-250 Super Duty

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Absolute worst purchase/product guided by on the phone specialist! I spoke on the phone before ordering to receive the best interior door speakers that provided significantly louder sound/bass for my 2002 Ford F250 truck! The first red flag was the installation bolt kit were extremely wrong and required me to cut them to within spec to allow the speaker to mount. Secondly the adapter plate was very universal and the screw tabs were nearly blocking the screw holes that attach to the door itself. Thirdly the plug'n'play speaker harness were pinned incorrectly which cause reversed polarity! Once that was corrected the overall sound quality was very poor and inferior to the OEM door speakers that are 20+ years old! This bar far was the worst purchase and money spent/wasted. I will be going with another company for future purchase as well as a better product in door speakers.

Pros: Shipping was fast and efficient!

Cons: Install kit was universal and not truly vehicle specific as advertised. Speaker wire harness was incorrectly pinned and caused reverse polarity Speaker sound quality was inferior and worse than the OEM speakers to be replaced!

Crutchfield response on 12/13/2022
Ryon contacted our Customer Support team and set up a return. Purchases from Crutchfield can be returned or exchanged within 60 days.
Customer review photo Customer review photo

1 of 2 found this helpful

JBL 521F

Kenneth from Oswego, IL on 11/27/2022

2019 Toyota 4Runner

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We upgraded from the original speakers in our 4Runner and just can't believe how much better the system sounds!

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Crutchfield response on

1 of 1 found this helpful

JBL 521F

Larry from Winston Salem, NC on 11/16/2022

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great speakers for the price , came with all the necessary components and fittings to easily install ///

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Crutchfield response on

0 of 0 found this helpful

Rear placement

Samuel from Crockett, TX on 9/29/2022

2003 Dodge Ram 1500

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Nice speakers.

Pros: Easy install.

Cons: Had to install them.

Crutchfield response on

0 of 1 found this helpful

Perfect replacement

Craig from Cheyenne, WY on 9/28/2022

2006 Jeep Wrangler

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Exact replacement for original speakers making installation a breeze. The speakers sound 1000% better than the factory speakers. Thanks to Crutchfield for the exact fit wiring connectors, the installation took me less than 20 minutes.

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Crutchfield response on

0 of 1 found this helpful

JBL 521F

John from Reno, NV on 9/28/2022

2018 Jeep Cherokee

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They sound a lot better than the stock speakers. I need to add a sub for that low end boom.

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Cesar from Katy, TX on 9/25/2022

2013 Ford Mustang

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Sounds good. Expected a bit louder but they do they job

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Crutchfield response on

0 of 0 found this helpful

Outstanding Quality

Brayden from Pierceton, IN on 8/31/2022

2009 Ford Crown Victoria

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Exceptional sound quality for how low the price was, not to mention when adding a high pass filter these things fill the car with so much life, there's no need for tweeters. Highly recommended for people who love a natural/flat (the way it was meant to be listened to) sound! Thanks Crutchfield for the installation help as well.

Pros: Definitely for showing off to yourself! ( if that's a thing )

Cons: Not necessarily for showing off to your friends

Crutchfield response on

1 of 2 found this helpful

Great value!

Mike from Nixa, MO on 8/15/2022

2005 Toyota Camry Solara

Verified customer (What's this?)
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Great punch and full sound. Excellent replacement for worn out JBL 6x9s.

Pros: Price, sound quality, ease of installation

Cons: none

Crutchfield response on

0 of 1 found this helpful

Work well

Andrew from Hutchinson, MN on 8/7/2022

2001 Chevrolet Corvette

Verified customer (What's this?)
Verified employee review (What's this?)

Installed these in the rear of a C5 Corvette. Original speakers were Bose. These seem to be a bit tighter in sound. The rear speakers in a C5 do not add much but I wanted a modern set rather than the 20 year old speakers. Installation was easy. No regrets.

Pros: Easy install Perfect fit

Cons:

Crutchfield response on

3 of 4 found this helpful

JBL 521F

Thea from North Port, FL on 6/27/2022

Verified customer (What's this?)
Verified employee review (What's this?)

After trying several different speakers that did not work I found Crutchfield and a customer service agent that sold me the JBL speakers that fit perfectly in our granddaughters 2001 jeep wrangler. If I had the extra money I would replace the front speakers as well! Great customer service and spot on with what I needed!

Pros: Complete perfection

Cons: None

Crutchfield response on

1 of 1 found this helpful

JBL is Best

Stephen from Indianapolis, IN on 6/20/2022

2001 Hyundai Accent

Verified customer (What's this?)
Verified employee review (What's this?)

Always a good pick, wasn't disappointed at all JBL is always great sounding. For small speakers these sounded great.(I cheated and installed sound deading material behind speakers against inside of door's outside skin)

Pros: Always great sound

Cons: Absolutely none!

Crutchfield response on

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Quinton, AL on 8/28/2021

2006 Kia Sportage

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Speakers sound great. The instructions given to me by Crutchfield were spot on. instillation made super simple. every thing i needed came in with the purchase. I used the recommend items and it made it even easier. super fast shipping

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Cave Creek, AZ on 8/12/2021

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Installed this in my 2021 Goldwing. OEM speakers are 4" single driver and I wanted a larger 2-way speaker. I selected these for their high sensitivity and smaller cutout dimension. (Kudo to Crutchfield for including that information in their tech specs). These provided much more low and mid than the factory speakers and very noticeable at speed.

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Crutchfield response on
Customer review photo Customer review photo

0 of 0 found this helpful

Mazda 3 Replacement Speakers

Crutchfield customer from Guthrie, OK on 6/26/2021

2008 Mazda 3

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Pretty good little speakers for the price. Not direct speakers for the 2 ohm, 6" x 8" Bose speakers, but with the "extras" sent with the order, they fit perfectly. Sound quality is very good and the system sounds like new. Would recommend.

Pros: Speakers fit perfectly with the extra pieces sent by Crutchfield. Sound quality is good. No real volume difference using these 4 ohm speakers.

Cons: Original Bose speakers are 6" x 8" at 2 ohm. Would have bought these if I could have found them. If I had to replace them again I'd go with a 4 ohm 6" x 8" speaker to fill the actual hole that's there.

Crutchfield response on

0 of 0 found this helpful

Great little speakers

Will from SEATTLE, WA on 6/7/2021

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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.

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Crutchfield response on

2 of 2 found this helpful

JBL 521F

Crutchfield customer from Rocky Point, NC on 5/26/2021

2013 Mazda 3

Verified customer (What's this?)
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Installed these in the rear doors of a 2013 Mazda 3 with factory radio and the sound quality has been greatly improved.

Pros: Quality sound at a good price

Cons:

Crutchfield response on

1 of 1 found this helpful

JBL 521F

Crutchfield customer from Jackson, CA on 5/25/2021

2019 Ford E-350

Verified customer (What's this?)
Verified employee review (What's this?)

The speakers sound great and the directions made it very easy.

Pros: Directions were very helpful. I couldn't have done it without them.

Cons: The adaptors for the speakers were difficult. But they did worked.

Crutchfield response on

1 of 1 found this helpful

JBL 521F

Crutchfield customer from Flower Mound, TX on 5/22/2021

2010 Volkswagen CC

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They sound great - and fit nicely with the supplied bracket.

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Crutchfield response on

0 of 0 found this helpful

jbl

Crutchfield customer from Payson, AZ on 5/19/2021

2000 Ford Mustang

Verified customer (What's this?)
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good sound-good price

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Easley, SC on 5/6/2021

2013 Ford F-150 XLT

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Speakers has great high to mid range response , but not much low end which is normal for a speaker that size.

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Blanco, TX on 5/2/2021

2005 Jeep Wrangler

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Sounds perfect, huge difference

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Crutchfield response on

1 of 1 found this helpful

Great

Crutchfield customer from Chicago Heights, IL on 4/28/2021

2017 Jeep Renegade

Verified customer (What's this?)
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Loud for smalls speaker. fits a Jeep renegade latitude. Best speakers I have bought at this price.

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Crutchfield response on

1 of 1 found this helpful

JBL 521F

Crutchfield customer from Yakima, WA on 4/24/2021

2006 Ford Focus ZX3

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Great speakers for the price

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Staten Island, NY on 4/22/2021

2003 Ford F-150

Verified customer (What's this?)
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The sound is crisp

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Huntingtn Bch, CA on 4/19/2021

1990 Toyota 4Runner

Verified customer (What's this?)
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Great full sound for a small speaker

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Guest from Bel Air, MD on 4/16/2021

2009 Acura MDX

Verified customer (What's this?)
Verified employee review (What's this?)

I'm very happy with how the speaker sounds in comparison to my blown factory speakers . But for the bracket and the "speedclips" . They were difficult to mount and understand. Don't know if I installed them correctly, was little to no instruction. I even looked it up and still couldn't figure it out.

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Crutchfield response on

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Ames, IA on 3/20/2021

2015 Jeep Renegade

Verified customer (What's this?)
Verified employee review (What's this?)

I'm not a audiophile but I just don't think these sound very good. Some of it I think is the installation adapter I had to use, but I wish I would have gone with the JBL9631F in place of these. I used those in the front of the vehicle and they sound outstanding. I used these because Crutchfield said the larger ones wouldn't fit .. but after reading forums it seems that others have used the larger speakers with no issue.

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Crutchfield response on 4/5/2021
We're sorry you're disappointed with your speakers. Whenever you are not completely satisfied with anything you purchase from Crutchfield, please contact our Customer Support team at 1-800-955-9091. Purchases from Crutchfield can be returned or exchanged within 60 days of the purchase.

0 of 0 found this helpful

JBL 521F

Crutchfield customer from Huntingtn Bch, CA on 3/14/2021

2003 Toyota 4Runner

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Great clear sound from a small speaker.

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Crutchfield response on

0 of 0 found this helpful

RV upgrade

Crutchfield customer from Camden Wyoming, DE on 2/11/2021

2013 Chevrolet Silverado 2500/3500

Verified customer (What's this?)
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These were a major upgrade in my brand new RV. The plan is to add 2 more.

Pros: Great sounds

Cons:

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JBL 521F

Crutchfield customer from Pineville, LA on 2/6/2021

2013 Ford F-150 XLT

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Wish it had a little more of a Bass sound but otherwise clear mids and highs!

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JBL 521F

Crutchfield customer from Pickens, SC on 1/30/2021

1995 Ford F Series

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Great sound at a great price. Super service from Crutchfield.

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JBL 521F

Crutchfield customer from Cumming, GA on 1/22/2021

2005 Scion xB

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I really like how they sound it makes your music sound smooth.

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JBL 521F

Crutchfield customer from Milford, PA on 1/11/2021

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Awesome speakers Jason set me up good

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I can hear my music again!!

Crutchfield customer from Graniteville, SC on 12/31/2020

2006 Jeep Wrangler

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Easy install and speakers sound great.

Pros: Easiest install ever.

Cons: None yet.

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JBL 521F

Crutchfield customer from Lawton, OK on 12/27/2020

2019 Ram 1500 Classic

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These 6x9's sound fantastic even without an amp. Amazing speakers. Clear highs and smooth bass.

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JBL 521F

Crutchfield customer from Sun City Center, FL on 12/14/2020

2006 Jeep Wrangler

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Awesome product and company

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Honda Civic upgrade

Crutchfield customer from Decatur, TX on 11/30/2020

2001 Honda Civic LX

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Amazingly upgrade in a Honda Civic, especially when paired with a 40 watt RMS amp. Sound is crisp and undistorted even at high volume. Highly recommend.

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JBL 521F

Crutchfield customer from Brownsville, TX on 11/28/2020

2000 GMC Sierra 2500

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Even when I blasted it the music sounded very clear

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JBL 521F

Crutchfield customer from Wetumpka, AL on 11/16/2020

2006 Dodge Magnum

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Nice sounding speakers.

Pros:

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2004 corevette

Crutchfield customer from Savannah, GA on 11/6/2020

2004 Chevrolet Corvette

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Fit in the rear compartment with no modifications. They sound awesome

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JBL 521F

Crutchfield customer from Dublin, VA on 11/2/2020

2013 Hyundai Veloster

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Good sound!

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Small, but good speaker

Jessica A. from HOUSTON, TX on 10/27/2020

2004 Chevrolet TrailBlazer

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I purchased these for the rear doors, to fill out the sound in my little truck (2004 Chevy Trailblazor ), as usual, the included extra parts the they supply, made the install easy & quick

Pros: good sounding

Cons: none

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JBL 521F

Crutchfield customer from Virginia Beach, VA on 10/15/2020

2002 Ford Ranger

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The bass from then is pretty good not only that they fit perfectly in my little truck with those mounting kits easy to install.

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C5 audio upgrade

Crutchfield customer from Northfield, OH on 10/5/2020

2002 Chevrolet Corvette

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The only thing missing in my new install is a good crossover, but that's coming soon. The 521Fs were placed in the rear of a Corvette convertible and they sound great. I can hear more of the highs than I expected to hear. As others have stated, you can hear cracking, but this is only if the bass is too high. At the right level, the bass sounds perfect. They are not subwoofers and should not be used as such. I have a sub for that. If you are looking to upgrade and want a nice set, you really can't go wrong with these.

Pros: Very loud highs and nice-sounding mids as well as lows.

Cons: None that I have seen thus far.

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Great upgrade from factory speakers

Crutchfield customer from Massachusetts on 9/26/2020

2020 Ram 1500

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Installation was simple. Speakers sound great. Good choice for upgrade from factory speakers.

Pros: Affordable Easy install

Cons:

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JBL 521F

Crutchfield customer from Brighton, CO on 9/26/2020

2001 Ford F-250 Super Duty

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I love the quality of the build on these speakers as well as the crisp high and mid range sound that they produce.

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JBL 521F

Crutchfield customer from Greenfield, IN on 9/2/2020

2007 Harley-Davidson Electra Glide Ultra

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EASY TO INSTALL. SOUNDS GOOD!!

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JBL 521F

Crutchfield customer from Avonmore, PA on 9/1/2020

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Very good, clear sound quality. Highly recommend.

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Nice sound

Crutchfield customer from Billerica, MA on 8/29/2020

2011 Dodge Grand Caravan

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nice sound - not a fan of the mounting brackets (6x9 converstion)

Pros: very nice sound

Cons: lower cut off about 100 hz

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Great option to replace factory speakers

Crutchfield customer from Burbank, CA on 7/28/2020

2002 Ford Econoline

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Sound really good, have good highs and good lows, I would not hesitate to buy these again.

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very good midrange speakers

Crutchfield customer from Laguna Woods, CA on 6/6/2020

2003 BMW 3 Series

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I would consider these mid range speakers. They are slightly smaller than stock BMW originals in my E46. I will add larger bass speakers in the rear. The midrange voice and instruments are heard fine. You will need to add more bass speakers.

Pros: voice and instruments in midrange are fine

Cons: Needs bass speakers added.

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Great

Crutchfield customer from Denham Springs, LA on 6/2/2020

2006 Honda Element

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Great sound. Easy install.

Pros: Great clarity.

Cons: Could use a bit more bass sound.

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JBL 521F

Crutchfield customer from Panama City, FL on 5/17/2020

2006 Ford Crown Victoria

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Sounds good

Pros: Easy to install price

Cons: None

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JBL 521F

Crutchfield customer from Moab, UT on 5/17/2020

2017 Jeep Renegade

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Really good quality speaker for size. Super easy to install.

Pros: Really good sound quality for a small speaker

Cons: None. All items worked perfectly

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JBL 521F

Crutchfield customer from Orlando, FL on 5/14/2020

2005 Chevrolet Colorado

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Fits perfectly and sounds awesome!

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JBL 521F

Crutchfield customer from Rochester, MN on 5/13/2020

2004 Ford Explorer

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Good quality speakers. Running off stereo makes for a small improvement compared to stock

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JBL 521F

Crutchfield customer from San Antonio, TX on 5/13/2020

2011 Ford F-150 FX2

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Crisp sound, nice separation. Music comes through nice and clear.

Pros: Easy installation

Cons: None

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Better than the stockers

Crutchfield customer from Fort Lauderdale, FL on 5/9/2020

1999 Ford Ranger

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Made my 20 year old ford ranger sound like a new truck

Pros:

Cons:

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JBL 521F

Crutchfield customer from Slidell, LA on 5/8/2020

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These are great little speaker. Install was super simple. Took about 25 minutes tops for both.

Pros: Good sound. good price

Cons:

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Excellent replacement of stock speakers

Crutchfield customer from Bozeman , MT on 5/4/2020

1997 Chevrolet Suburban

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Great value, awesome replacement for stock speakers. Outstanding quality product that sounds way better than the original stock speakers I would recommend this to anyone looking for a great quality product to replace the old stock speakers

Pros: Came with everything needed to install them.

Cons:

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Great speakers

Crutchfield customer from Clackamas, OR on 5/3/2020

2003 GMC Envoy XL

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Awesome sound and easy to install

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Excellent speakers.

WILLIAM from Aurora, CO on 4/28/2020

1998 Dodge Caravan

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Bought these to replace worn infinity 5 1/4 in the dash on a '98 Grand caravan with the Infinity Acoustic 10 system. They sound great. Very clear. Very crisp. I put bass blockers on them to make them more "tweeters". Have JBL 8026 6x8 in the front doors, and JBL 9036 6x9 in the rear (mid-) panel. Everything powered by a new Kenwood Excelon KMM-X704 head unit with 22 watts per side. I disconnected the entire Infinity system (four, count 'em) amps!

Pros: Excellent price. Fit perfectly. Bass blockers do the job. Very crisp and clear.

Cons: Zero.

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JBL 521F

Crutchfield customer from Albuquerque, NM on 4/25/2020

2001 Jeep Cherokee

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Easy to install and very good sound

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Cons:

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JBL 521F

Crutchfield customer from Camillus, NY on 4/21/2020

2004 Chevrolet Silverado 2500/3500

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These are very good sounding speakers compared to the factory speaker

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JBL 521F

Crutchfield customer from Skowhegan, ME on 4/20/2020

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I have been dealing with Crutchfield since 1989. Never a problem. Never!

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JBL 521F

Crutchfield customer from Connersville, IN on 4/15/2020

2006 GMC Yukon Denali

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Fast delivery , as soon as they got delivered I could not wait to put them in . It was easy process , plug in play and boom they was were working . I had to drive around blaring my music so everyone could hear the good quality . Appreciate your business !!

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JBL 521F

Crutchfield customer from Knoxville, TN on 4/13/2020

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Ordered JBL 5 1/4 for front bottom speakers in a 2012 Mini - unfortunately didn't sound well. Not enough base and too much treble. OEM speakers sounded better. Upgraded to 6 1/2 Polk which were more suited and provided much better base. Fit was very good. I did have to drill new holes, but fit perfectly otherwise.

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JBL 521F

Liam Andrew from SALT LAKE CITY, UT on 4/13/2020

2002 Subaru Impreza WRX

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Dealing with a small speaker hole I wanted to make a good choice and get the most out of the small speaker size. This speaker had no reviews and was new to Crutchfield so I took the risk because the description sounded good. I was not happy with the sound at all. It honestly has no range and pops at quite a low volume like a blown speaker. They sound really flat and I plan on replacing them with something else. I've had 4 inch speakers that sound better. I wouldn't recommend this speaker.

Pros: Fit and finish looks nice but that's about it.

Cons: Sound quality vs price. Flat sound. No range. Sound gets progressively worse with volume (I'm not blasting it or anything either).

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JBL 521F

Crutchfield customer from Virginia Beach, VA on 3/27/2020

1999 Toyota Camry CE

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Sound great!

Pros:

Cons:

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JBL 521F

Crutchfield customer from Ooltewah, TN on 3/26/2020

2004 Chevrolet Silverado 1500

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Been installed a week. Improved sound over the tired factory Bose door speakers for sure. Good mids, clear highs. Will sound better once I get the EQ dialed in. Great speakers!

Pros: Immediately noticable sound improvement over factory

Cons: None so far

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JBL 521F

Jaxon from Hollandale WI on 3/24/2020

2011 Volkswagen Jetta

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Amazing speakers for a very good price i have no complaints for these would 10/10 recommend 2011 VW Jetta TDI

Pros: good sound and good price

Cons: none

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Excellent Speaker at a great price

Crutchfield customer from Sioux Falls, SD on 2/22/2020

2014 Jeep Wrangler

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Great sounding speaker, and very easy to install in my 2014 Jeep Wrangler!

Pros: Great Sound Easy to install

Cons: None

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02 wrangler stereo upgrade

Crutchfield customer from Dracut, MA on 2/15/2020

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Everything fit as expected your rep was wonderful to work with very knowledgeable everything was exactly as he said shipping was done in a timely manner system sounds wonderful my son is very happy with it

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Amazing speakers

Crutchfield customer from Largo, FL on 1/3/2020

2004 Toyota Camry

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I bought these speakers for my daughter for Christmas and she absolutely LOVES them! I got them for a GREAT price! Thank you!

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JBL 521F

Crutchfield customer from Pittsboro, NC on 12/24/2019

2016 Volkswagen Jetta

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Very clear sound

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Cons:

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GOOD STUFF!

Crutchfield customer from Kittery, ME on 10/13/2019

2011 Ford Transit Connect

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Pretty good speakers for short dough.Slightly better full range sound than the oe's which were fair to good!Sorry to see they have to be made in Vietnam.Id play much more to get USA ANYTHING!!!

Pros: Sounds very good

Cons: Made elsewhere!

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Clear sound

Crutchfield customer from Jefferson, MD on 10/7/2019

2005 Ford F-250 Super Duty

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Clear sound

Pros: Easy install

Cons: Would have got 6x9 if I knew they would have fit and not used the adapter plate and speakers provided.

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2 of 2 found this helpful

Great sound, for a reasonable price.

Crutchfield customer from Greenfield, TN on 10/3/2019

2003 Dodge Ram 1500

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I replaced a pair of entry level Kicker 5.25s with these. I also replaced my 6x9s with the mates to these. Immediate positive difference. I also just installed a Sony MEX xb120bt 40-45 watts rms I believe which really woke these speakers up. I like them a lot.

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