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Line 6 JM4 Looper Guitar Effects Pedal Silver

Item #: 
1274034482937   POS #:104924618
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Product Description:

The Line 6 JM4 guitar looper pedal features over 100 jam tracks performed by A-list studio players including Jason Bonham, Tony Franklin, Carmine Appice, Gregg Bissonette and many more slamming the dr... Click To Read More About This Product

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Gear returned in mint condition. If you're looking for a virtually new instrument in possibly less-than-perfect packaging, this is a great value.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Gear returned in great condition, with only minor signs of use, such as slight scuffs or pick marks. It looks and plays like new and may be considered an equivalent to display units found in retail stores.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Price: $329.20
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The Line 6 JM4 guitar looper pedal features over 100 jam tracks performed by A-list studio players including Jason Bonham, Tony Franklin, Carmine Appice, Gregg Bissonette and many more slamming the drums, thumping the bass and hacking away at guitars. It's a fully featured looper pedal with sound-on-sound loop recording.

Along with looping capabilities, the JM4 contains an instant collection of amazing tones including 200+ artist-created presets, 150+ song-based presets, 12 original Line 6 amp models, seven guitar effects, vocal effects and 36 banks for saving user-created tones.

It's a portable, heavy-duty, all-in-one effect pedal with an enormous amount of features, tones and opportunities for inspiration. Casual and serious guitarists in search of jamming, practice and performance helps will find the JM4 looper invaluable.

The JM4 supplies you with awesome Line 6 tones and effects. It provides a backdrop for players to explore different musical styles and jam with studio-quality musicians. The guitar pedal features exciting, energized jam tracks. It's like playing with a real pro band, because you are playing with a real pro band.


  • 100 jam tracks by A-list studio players
  • Fully featured looper
  • Up to 24 minutes of recording time
  • Undo function
  • 200+ artist-created presets
  • 150+ song-based presets
  • 12 original Line 6 amp models
  • Seven Smart Control guitar effects
  • Vocal effects
  • 3-band EQ, Compressor, Delay and Reverb
  • Master volume
  • Channel volume
  • 36 user banks
  • 1/4" instrument input
  • 1/4" aux input
  • XLR mic input with dedicated trim knob
  • 1/8" CD/MP3 input
  • 1/8" stereo headphone output
  • 1/4" mono guitar output
  • 1/4" stereo outputs
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Pro Coverage includes
  • Accidental damage protection
  • Expedited repair or replacement
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to five years from date of purchase
  • Repair authorization-toll-free by phone or via the web
Customer Reviews

Review Snapshot

by PowerReviews
Line 6JM4 Looper Guitar Effects Pedal

(based on 9 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 9 customers

Displaying reviews 1-9

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(95 of 103 customers found this review helpful)


A Very Nice Practice Tool

By E.Folkes

from Texas

Comments about Line 6 JM4 Looper Guitar Effects Pedal:

The Line 6 JM4 Looper is a very good product. For those of you who do not have other people to play with It's jam tracks are very well done. If you are learning the 7 modes of the major scale, or your pentitonics it is perfect to play those over and get a feel for what it is like to play in a band. The thing I like about it most is that if you like a particular backing track you can go in and change the tempo and key of it and practice your scale modes in another key using the same backing track. You can also make and layer your own tracks. It's also not to complicated to figure out. Ok for the negatives an on/off switch would have been nice, but there is not one. Some of backing tracks might sound a little distant but it is not so much that I wouldn't recommend it. Anyway it is well worth it to hone you skills. If you are contemplating getting a looper do check this one out.

(22 of 22 customers found this review helpful)


more like 4 3/4 stars

By scott

from pittsburgh, pa

Comments about Line 6 JM4 Looper Guitar Effects Pedal:

i'm very much a novice player and almost never have the chance to play w/ others. the jm 4 has completely changed my guitar world. i've had it for two weeks and am still going through the presets: tones; beats; jam tracks. there is so much in this little box. the tones are already set to match the jams and the key is already given too. i think you can also change the given key but i haven't made it that far. i've found my playing stuck in the blues box as of late but now now it is all over the place. the jm 4 is so much more than just a looper. but nothing is perfect. it could use an on/off and some of the tones are similar but with all you get, who cares? it is so worth it. if you were at all thinking about getting a looper, especially if it is because you are playing alone, this is the one

(22 of 22 customers found this review helpful)


well worth it, get one.....

By jamm4mee2....

from chicago il.

Comments about Line 6 JM4 Looper Guitar Effects Pedal:

Got this thing 2days ago,love it! Great for the begginer in every way or any level player looking to practice different styles. But theres much more. you get recording 101 and then some.the effects & pre-sets are solid and you can tweek themm all.The drum&jam tracks are good but,a few sound muddled...ONLY a few...I found that with jams best to use headphones or studio monitors.Amps dont sound all that great and adjusting everthing to compensate is a real drag... Even more so modeling amps... With that said I give it 8 out of 10. No on off switch, and some of the controlls and features arent as useful as I'd like.And there is no practicle live or stage use. but I love this thing. And its solid quality. I strongly recommend it..Hey and with headphones it goes anywhere.Go to the Line 6 site for more info. I did. then go get you one...

(20 of 22 customers found this review helpful)


sweet machine

By mark

from SC

Comments about Line 6 JM4 Looper Guitar Effects Pedal:

This is a pricey but awesome little machine. I traded up from a JAM-Man and am very glad I did. The Jam tracks are superb, and the drum tracks are rockin. The looping is easy and seamless. The effects are standard line-6, so if your a fan of line-6 you will love them. It has onboard reverb, flange, chorus, delay in addition to all other effects. It even has xlr inputs with onboard mic FX, which is perfect for me doing acoustic shows. I bring my PA and my JM4, and that's it (well except for my guitar & mic). All and all, a great tool for performing and a superb tool for practicing and tightening up your guitar technique. VERY glad I bought it. You should get the extended GC warranty because you'll want to keep this thing forever.

(3 of 5 customers found this review helpful)


Usual Line 6Tricks

By John Weissman

from NY

Comments about Line 6 JM4 Looper Guitar Effects Pedal:

Good sounds, but unit desperately needs USB connection. Then, and only then is it a serious recording tool.

(3 of 3 customers found this review helpful)


The Perfect Looper... Almost!


from Kennesaw, GA

Comments about Line 6 JM4 Looper Guitar Effects Pedal:

First off, this thing rocks! Especially the looper, which is why I bought it. It also has an XLR in for mics and has vocal effects, not to mention some great amp models for your electric guitar. Here's the only issue I have: The acoustic guitar only sounds good in the AUX in, but that can't be looped separately from the vocal. They're on the same channel. I tried to use the guitar in, but that's really only for electric guitars. If Line6 would add a good acoustic amp model you could do a 1 man band with no mixing board. It even has an 8th inch jack for an mp3 player. Like I said, perfect... almost.

(3 of 4 customers found this review helpful)


This Looper Would Be Perfect If...


from Phoenix, AZ

Comments about Line 6 JM4 Looper Guitar Effects Pedal:

...for me--everbody's usually looking for specific things in their looper. That being said, this the JM4 is fantastic for practicing and creating and would be perfect for me at live gigs also if... 1. It had cleaner looped sound quality 2. true bypass--I mean, when it's not even on the signal goes through, true bypass 2. the forth pedal was for 'repeat once' ...should they upgrade this pedal to include the above, I'll shell out for a new one. In the mean time I love and appreciate that it currently has... 1. more than ample looping length 2. ability to save those loops to the pedal or an inserted SD card 3. the great led window that - shows you where you are or what loop you're using - even shows the progression of the loop as its playing - that you can custom name your loops 4. 3 stompers--Record, Play, Undo (please, just make that 4th one for 'repeat once') 5. the great drum and song loops to practice and create with 6. the INCLUDED 9v power supply (take not other pedal manufacturer!) 6. the use of a digital memory card and the ability to save to it 7. the ability to connect to a PC for various things like updates and backups


Don't waste your time.

By Dorris

from undisclosed

About Me Experienced

See all my reviews


  • Good Selection Of Effects


    Best Uses

    • Amateur Recording

    Comments about Line 6 JM4 Looper Guitar Effects Pedal:

    Unit needed a firmware update to correct issues but after many wasted hours was unable to complete. After talking with Tech support and explaining what had been attempted, they said it would have to be returned to the factory to be updated...Not good. Additionally no USB connectivity so it's very limited in storage capabilities and impossible to catalog your work. Not a serious recording device in my opinion.


    Buy this looper!

    By Bgddy

    from Ft. Worth , tx

    About Me Experienced

    Verified Buyer

    Comments about Line 6 JM4 Looper Guitar Effects Pedal:

    Great product! Love the guitar effects from 70's , 80's, and 90's. Love this thing!!!

    Displaying reviews 1-9

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