JL Audio MX280/4
Crutchfield customer from St Petersburg, FL on 1/18/2021
I have two of these in my boat and one of them powers my 8.8 inch tower speakers and they sound amazing.
Pros: I highly recommend these amps.
Cons: speechless

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JL Audio MX280/4
Crutchfield customer from Saint Johns, FL on 11/20/2020
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JL Audio MX280/4
Crutchfield customer from Fremont, OH on 7/15/2020
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JL Audio MX280/4
Crutchfield customer from Parkersburg, WV on 6/30/2020
2016 Toyota Tundra
Single-ended wiring makes for a clean install. Awesome power!
Pros: Great amp all around!
Cons: Unnecessary oversized power wire recommended for average install unless you plan on maxing it out at 2ohm with a really long run.
0 of 0 found this helpful
Awesome amp. Fits my TJ perfectly.
Nathan from JOSHUA, TX on 4/16/2020
1999 Ford F-250 Super Duty
Great compact amp. Lots of output and as usual of JL exceeds it's specifications. Only oddity is you have to take a 8 guage power lead to it. It has 10guage. Not alot of ways to go from 10awg to 8awg.
Pros: Awesome clean powerful amp.
Cons: JL really should put 8ga power leads on this. Going 8 to 10 guage is hard.
0 of 0 found this helpful
JL Audio MX280/4
Crutchfield customer from Carlisle, KY on 11/24/2019
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JL Audio MX280/4
Crutchfield customer from St Petersburg, FL on 9/6/2019
Excellent waterproofing. Sound quality driving two JL Audio 7.7's was not as clean as I would have hoped for. I also thought the wiring schematic was slightly confusing.
Pros: Waterproof
Cons: Lack of high quality sound driving 7.7 JL Audio speakers.
0 of 1 found this helpful
JL Audio MX280/4
RICKEY from Georgetown, TX on 5/13/2019
THIS LITTLE AMP REALLY PUTS OUT THE POWER, AT A LOWER CURRENT DRAW.
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1 of 1 found this helpful
JL Audio MX280/4
Guest from Dyersburg, TN on 4/14/2019
1 of 1 found this helpful
JL Audio MX280/4
Todd from Anaheim, CA on 2/24/2019
0 of 0 found this helpful
Two thumbs up
Crutchfield customer from Douglasville, GA on 2/4/2019
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JL Audio MX280/4
Crutchfield customer from Bronx, NY on 9/21/2018
great sound...
Pros: clarity, power, great sound
Cons: none
0 of 0 found this helpful
JL Audio MX280/4
Crutchfield customer from Prairieville, LA on 6/23/2018
Really great sound. Hooked up to 4 JL Audio Speakers. Just wow
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2 of 2 found this helpful
JL Audio MX280/4
Ed from Jacksonville, FL on 5/13/2018
Great compact amp for standard 4 speaker boat unit and simple to install for a DIY person!
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1 of 1 found this helpful
JL Audio MX280/4
Crutchfield customer from New Port Richey, FL on 11/10/2017
Outstanding amp! Sound quality is perfect,power is good and size is perfectly small.
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Powerful Amp.
Jose Javier from Miami, Fla on 10/31/2017
Excelente Amp. It's more powerful than advertise. I would highly Recomend it.
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NOT TYPICAL JL AUDIO QUALITY.
Crutchfield customer from Sterling, IL on 10/16/2017
I purchased this amp to use in my Polaris slingshot for speaker upgrade with use of stock radio head And love JL products and have several amps in boats etc.The sound quality was very poor and lots of noise generated hiss etc . Bass and mids almost non existent. Sounded as if polarity was reversed on speakers if you are familiar with how that sounds. The speakers were 6.5 JL and then tried the polks out of my boat and Finally tried Hertz. Same Issue. After talking to a friend that is a dealer out of state he said his shop feels that this amp was sourced in to compete in the small D class amp market and It Is NOT TYPICAL OF JL QUALITY. Upon his recommendation purchased a Rockford Fosgate TM400X4ad that he now uses in all powersport or Harleys. Wow much cleaner sound and base and built in fans. Yes more money but hated sound with that JL amp. Don't know what is different but hated the sound quality of that amp in my application. I'm returning this. I would definitely buy from Crutchfield again and also JL audio but not this model.
Pros: compact size ease of installation
Cons: poor sound quality and noise in my Polaris slingshot
6 of 7 found this helpful
Great sounding amp but one big problem
Andre from Buffalo Ny on 9/29/2017
I bought this amp for 2014 Kawasaki vaquero fits great under motorcycle faring and sounds great with the Polk audio 5 1/4 waterproof speakers only one big problem does not work in colder temperatures 50 to 60 degrees the amp does not come on until it warms up maybe 20 or 30 mins by then I have arrived at my destination
Pros: Sounds good great size fits almost anywhere price is good
Cons: Does not work in colder temperatures
6 of 6 found this helpful
JL Audio MX280/4
Guest from Cape Coral, FL on 6/25/2017
Great power in a compact size Using it as a 3 channel to drive JL c2 6x9 and a 6.5 jl microsub in a 2017 f150 Only thing I didn't expect or like is that this amp has signal sensing So the amp powers on as soon as I open the door as ford uses the speaker for door chimes No place does jl audio say it does this but I can tell you it powers on with out the remote wire and there is no way to defeat it on the amp Email to JL confirmed this feature is on the amp and not published I would have gone with another amp had I known this
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4 of 5 found this helpful
JL Audio MX280/4
Crutchfield customer from Waterloo ia on 5/2/2017
Overall excellent product and great company to purchase from very pleased
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0 of 0 found this helpful