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Line 6 JM4 Looper

by Line 6
| 4 answered questions

Price: $299.99 & FREE Shipping. Details
Only 12 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
  • 100 jam tracks by A-list studio playersFully featured looperUp to 24 minutes of recording timeUndo function200+ artist-created presets150+ song-based presets12 original Line 6 amp modelsSeven Smart Control guitar effectsVocal effects3-band EQ, Compressor, Delay and ReverbMaster volumeChannel volume36 user banks
14 new 3 used from $249.99

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Frequently Bought Together

Line 6 JM4 Looper + SanDisk 2GB Class 4 SD Flash Memory Card- SDSDB-002G-B35 (Label May Change) + SanDisk 2 GB Class 2 SD Flash Memory Card SDSDB-2048-A11
Price for all three: $340.37

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Product Details

  • Product Dimensions: 18.1 x 9.1 x 4.7 inches ; 6.6 pounds
  • Shipping Weight: 7 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B00170250A
  • Item model number: 99-060-1305
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (17 customer reviews)
  • Amazon Best Sellers Rank: #12,265 in Musical Instruments (See Top 100 in Musical Instruments)
  • Date first available at Amazon.com: April 2, 2008

Product Description

Product Description

Awesome for jamming, awesome for loop-style performances! With the Line 6 JM4 Looper in your rig and under your foot, you're on your way to becoming a better guitarist. Why, you say? Well, first up... there are over 100 "Endless Jam" tracks and drum grooves inside this thing, all recorded by first-class players. It's the perfect way to work on your soloing chops or to try out new ideas. Then, on the looping side of things, you've got up to 24 minutes of recording time and space to store up to 100 jams. And you can even use a 2GB card in the SD card slot to boost your storage and easily transfer the WAV files to your recording software of choice. On the flip side, you can load your own tracks on the SD card to import your tunes into the JM4 looper, then get creative by transposing and time-stretching them... or looping over it.


Combining exhilarating jam tracks with sound-on-sound looping and a full arsenal of legendary Line 6 tones, JM4 Looper sparks inspiration in ways other looping pedals can only dream.

JM4 Looper features over 100 Endless Jam tracks and drum grooves in more than 10 styles performed by top LA and Nashville session players. These tracks aren’t rigid and robotic; these are actual recordings laid down by A-list drummers, bass players and guitarists. The real-world chemistry from these dynamic rhythm sections is here for you to explore your creativity in writing songs, trying out solo ideas or just honing your chops between gigs.

With up to 24 minutes of recording time, and storage for up to 100 recorded jams, JM4 Looper lets you capture all your riffs and musical ideas. Plus, store more jams, export your jams to your computer’s recording software and post jams online all through the SD card slot.

The looper has dedicated footswitches for Record/Overdub, Play/Stop, Half Speed and Undo for super-easy practicing, songwriting and creation of an entire backing band on the fly. Layer guitar tracks, bass tracks, keyboards—even vocals with the balanced XLR microphone input.

Complete with a comprehensive collection of brilliant modern and historic guitar tones, JM4 Looper gives you access to 200+ artist-created presets, 150+ song-based presets, 12 Line 6 amp models and a stunning array of effects for guitar and vocals. There’s even room for 36 presets of your own creation.

World Class Rythm-Section Chemistry
To get the best possible sounds, we’ve compiled a roster of ridiculously good A-list session players and recorded them at amazing studios around the country including Steve Vai’s studio, The Mothership, as well as Sound Asylum in Canoga Park, California and Sound Emporium’s Studio B in Nashville, Tennessee.
Here are a few choice cuts:

VIBE: Gregg counts off this slammy stomp that comes complete with thumpy bass and triplet chorus.
FEATURING: Tal Morris (guitar), Tony Franklin (bass), Gregg Bissonette (drums)

VIBE: Palmed bass and guitar start off this big, highway-inspired thump. The chorus gets huge when it opens up!
FEATURING: Tal Morris (guitar), Tony Franklin (bass), Carmine Appice (drums)

VIBE: A smooth, twangy, mid-tempo bounce inspired by the greats of outlaw county. Jam along to solid rhythms and a sweet chord progression.
FEATURING: Brent Mason (lead guitar), Dave Pomeroy (bass), Steve Turner (drums), John Hobbs (keyboards), Pat Bergeson (acoustic guitar), Paul Franklin (steel guitar)

VIBE: Solo or comp along with just bass and drums in this stripped-down country jam.
FEATURING: Dave Pomeroy (bass), Steve Turner (drums)

VIBE: Perpetually ready for liftoff, Dave and Steve hold down this rodeo rag perfect for strummin’ or chicken pickin’.
FEATURING: Dave Pomeroy (bass), Steve Turner (drums)

VIBE: Pulsing, gritty bass and tight hi-hats really push along this jam. The feel is solid and right in the pocket.
FEATURING: Tony Franklin (bass), Simon Phillips (drums)

VIBE: Light and airy but dynamic with Tony’s walking bass as the backbone. Hear Gregg switch from sticks to brushes!
FEATURING: Tal Morris (guitar), Tony Franklin (bass), Gregg Bissonette (drums)

VIBE: Blistering, gritty and ferocious! Everybody’s just pounding away in this tight and brutal rock onslaught.
FEATURING: Tal Morris (guitar), Tony Franklin (bass), Gregg Bissonette (drums)

JAM 098 RED GROOVE 1 and 6
VIBE: Layers of rhythmic texture put the swing in this jam that’s just begging for solos.
FEATURING: Dave Pomeroy (bass), Steve Turner (drums)

JAM 105 AMOS GROOVE 3 and 4
VIBE: An R n’ B-flavored bass line and funky beat make this jam ideal for tightening up those major 7th chords.
FEATURING: Dave Pomeroy (bass), Steve Turner (drums)


Amp Models
JM4 Looper offers an extensive collection of modern and historic guitar tones including 200+ artist-created presets, 150+ song-based presets, 12 Line 6 original amp models and a stunning collection of effects for guitar and vocals. There’s even room for 36 presets of your own creation. Just like most of us, each Line 6 original amp model has a light side and a dark side. Or, in some cases, a dark side and darker side…

Effects: A Complete Palette of Colors and Textures
Add depth, color and texture to your guitar tones and vocals with any of the pro effects included in JM4™ Looper. Spend more time playing and less time tweaking your guitar tone with Smart Control FX. Find the effect you want, turn the knob to the desired intensity and you’re done. Seven effects to choose from—use up to three at a time.

  • 200+ artist-created presets
  • 150+ song-based presets
  • 36 user-programmable presets
  • 12 Line 6 amp models from Clean to Insane
  • 7 Smart Control FX
    1. Chorus/Flanger
    2. Phaser
    3. Tremolo
    4. Delay (with Tap Tempo)
    5. Tape Echo (with Tap Tempo)
    6. Sweep Echo (with Tap Tempo)
    7. Reverb
  • 3 tone controls
    1. Bass
    2. Mid
    3. Treble
  • Integrated tuner
Independent Mic/Aux input effects: 3-band EQ, Compressor, Delay and Reverb
  • 100+ Endless Jam™ tracks and drum grooves
  • Save up to 100 CD-quality recorded jams (totaling 24 minutes of recording time) internally
  • SD card slot for importing and exporting loops and recordings. (Supports up to 2-GB SD card for storage of up to 6.5 hours of recorded jams. SD card sold separately)
  • Dedicated footswitches for Record/Overdub, Play/Stop, Half Speed and Undo
Ins & Outs
  • 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

Customer Reviews

This is one of the best investments in yourself you'll ever make.
Amazon Customer
One more thing - All the loops were played by session players so is like playing with a live band, not a drum machine like back in the day!!
Ray St John
It has over a 100 backing tracks and you can change the tempo of each of them to your preferences.
Winndell K. Powell

Most Helpful Customer Reviews

12 of 12 people found the following review helpful By Review Man on January 28, 2013
I was looking for a "band in a box" type practice tool with recording capabilities and this fits the bill. Like a lot of Line6 products, it's consumer oriented with lots of cool features but not the type of machine I'd use for performing or serious recording. I made some nice recordings of myself within one hour of plugging it in, but the overall ease of use and sound quality are lacking.

PROS: Lots of backing and drum tracks to jam to, with the keys indicated for easy soloing; tempo and pitch shifting work well with generally not a lot of distorting so you can alter the backing tracks lots of ways; up to 6.5 hours of memory with a 2GB SD card; the whole thing feels sturdy and well put together; the four stomp buttons are solid and their functions can be changed; lots of flexibility for signal routing (you can, for example, connect a guitar, a mic, and a keyboard or second guitar simultaneously [through the 1/4-inch aux input], and then adjust the input levels and output the signals separately to an amp and a PA system); it will select an appropriate guitar sound automatically based on the backing track or you can turn that feature off and use your own settings; MP3/iPod input; built-in chromatic tuner is accurate; you can name recordings and loops with actual letters and words instead of just a number from 0-99.

CONS: This thing is long in the tooth -- as in, old. Created several years ago and doesn't use the latest technology. The SD card formatting it uses, plus the 8.3 file name format is just old. It exports WAV files in mono. The firmware hasn't been updated in a few years from what I can tell; Noise! I use mine with headphones and background noise is a real problem.
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17 of 19 people found the following review helpful By S. R. Sopha on May 13, 2010
This thing has some cool features, but a lot of junky ones. I was hoping they would keep a continuance of downloadable tracks, but they don't. I dig jazz, but there are only two jazz tracks and a large assortment of rock or metal tracks, all very bland and unexciting. The biggest problem, is that if you get your presets just right, and then switch tracks, it alters your guitar tone to fit the song, so you have to redial your guitar in, might not be a problem if you just want to fit in with them, but if you have a hollowbody hooked up and it switches to Insane Metal your amp is trashed! I suppose you could save your presets, but you should be able to set it and forget it without turning features off.
The record sound is attrocious too. I have saved several tracks to the sd card and transfered them as waves to my ipod, they sound horrible: muffled, undynamic. I know its not a four track, but it acts like one so should function like one too. Could probably do better with a tape recorder.
The pitch and tempo changes don't work either. They say it doesn't alter the tone, but they are lying. The drums take a digital stretched sound if you alter the tempo.
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12 of 13 people found the following review helpful By Jdl8r on November 3, 2011
Verified Purchase
This is surely an interest product... It has some effects, a loop station with lots of memory, and some jam tracks. All are useful and fun to play around with and that's about it. The effects are basic and offer very little tuning adjustment - there are three delays, but the only adjustment is the amount of delay and the rate. The looper has tons of memory and can have multiple tracks for voice/guitar, but getting to them is difficult and managing the loops is less than intuitive. The real purpose of this unit is the jam tracks, which offer a lot of variety but cannot be added to or changed, thus they get old after a while. Like most guitarists I like to play certain genre's, but they only had 1 real blues track. My biggest problem was at after a few months of play, the unit would lock-up - disabling any/all of the foot and button controls. This required a power cycle of the entire device, losing whatever changes were made in the process.
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5 of 5 people found the following review helpful By Zack Urlocker on September 24, 2009
The JM4 Looper is way more than just a looping pedal. It's really a "band in a box" type of product. There are 200+ different custom guitar tones and over 100 backing tracks of various styles: rock, metal, blues, country, funk, pop, you name it. As with usual Line 6 gear, it's got built-in amp modeling for typical Fender / VOX and Boutique amp tones. As well as built-in reverb, flanger, echo, phaser, chorus etc. Its darned easy to just start jamming to the backing tracks. You can change the guitar tone, the amps etc. Even better, you can change the tempo and key. (however, if you change more than 2 half-steps some tracks distort weirdly.)

If you use the Line 6 JM4 Looper, you will no doubt get better in your playing. But if you're looking for "just" a looper, consider something else as you might get frustrated with all the features.

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3 of 3 people found the following review helpful By Robert Bushby on April 23, 2013
I really love my new JM4 Looper from Line 6.
I don't do live stuff, but this gives me an awesome opportunity to work on my timing and chops to all kinds of great back tracks and drum tracks.

The included Amp effects are great as well, but a waste for me since I already have a Spider IV150 with 4x12's

So bottom line this thing is really just a Spider Jam without the amp and speaker, in a neat little floor rig. But if your looking for something for live performances, I think you'll be doing a lot of bending over and foot stomping running up and down the options. There is also way too many functions crammed into way too few buttons and way too small a screen.

It doesn't integrate with any other line 6 devices and there is no options for external controls to an ipad or other switching device, so for me it will just be a practice accessory.

Some other flaws, if you want to tweak your jam files or wav files you will need to remove your SD card and put it in a computer and you will have to have expensive software (not included) to modify them.

All in all it's a great unit. I love the line 6 quality and the sounds. I only give it 4 stars because the price is too high for what you get and it needs consideration for other forms of expansion, but if you can live with that, I would still buy it.
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