Thanks

Jan 

The JM4 restarts every time I want to check the tracks on the SD card. I think, the card is empty. Whenever I turn the control wheel (the one right next to the display), the JM4 restarts after a few moments. The logo appears on the display and I hear the typical crackling sound in the headphones.

Is this a firmware error? Does anyone know this?

I haven't found anything like this on the Internet.

Can somefrom from L6 provide the file hash for the firmware file fw.bin?

My hash is as follows:

CRC32 Checksum: 2326C3F8
MD5 Checksum: B36FC639EB8440B92344BC43D26FC517
SHA-256 Checksum: DF9F3A00C67BB51B922CE1C8BD8AC64C33EFF92F3DBCCA9350EF9EF6BF3BF287
Generated by MD5 & SHA Checksum Utility @ http://raylin.wordpress.com/downloads/md5-sha-1-checksum-utility

Thanks,

David

Many thanks, P

I wanted to ask about workflow tips for using the looper to play songs as a one man band.    What's your best advise to play a song with chorus, verse, bridges and performing?  Would you pre-record the entire song or would you have a loop for each part and switch between them if this is even possible?    I'm just trying to get a set down and asking about the best way to approach it.  

Also is there a place to download files that would work with this looper for popular songs?

Thanks in advance,

G.

So I removed the 8 gig card and the issues was resolved. Reason? For some reason (sorry I didn't get any details from the Line 6 rep I spoke with) when the JM4 was released the largest SD cards out there were only 2 gigs. So in my case when it tried to access an 8 gig card it simply didn't know what to do, freaked out, and executed a re-boot. I can only can wonder what it would have done had I installed a 32 gig card!.

If the moderator of this forum has a more definitive answer to this issue, I'm sure we'd all appreciate learning more.

The JM4 is really a unique product. It may technically be "old" these days, but it is still a very powerful creative tool.  

Can anyone identify for me a commercially available-for-purchase (as of 12/2020)  and known-to-work 2GB SD card for the JM4?

The 2GB SD card I bought does not work.   Buying card after card in a blind attempt to find one that works is just going to be too frustrating to attempt!

Alternatively, does anybody actually *have* an old 2 GB SD card that used to be in a JM4 which they have parted with?   I would be happy to arrange shipping and a fee to acquire it from you if so.

I just want to get the most out of my JM4!

I have just bought this unit second hand and assume it is faulty. Anyone else having this problem?

I've formatted it several times in there looper, but same results, I don't really want to go and purchase another card just in case it happens again, and everybody I know there SD cards are above 2GB. Any suggestions will be appreciated.

I have a JM4 Lopper, It is a great fun playing with it. Although I have quite of a problem.

After saving a recording onto the SD Card by the looper and then transferred it to my laptop I have found that when I convert the file extension from .JAM to .WAV I have no drum as a backing track. Basically it seems like the looper did not include the drum on the recording when saving it on the SD Card. I don't know if the drum gets lost when converting the file or it is basically never been included in the recording. When I say the drum I am referring to the ones built in the looper that we can play on top.

Also when I try to save the recording directly from the looper as .WAV to the SD Card it said "SD-CARD write error"

Is there a way to fix this problem? 

Thank you in advance!

I´m having problems to input a Microphone in XLR entrance in .

The JM4 Looper doesn´t keep the parameters on configuration and the sounds are really awfully bad.

Otherwise at AUX entrance it becomes better, but still sufferable.

Does anyone can help me on this matter?

Elbows for Everybody! 

It sounds great through the PA, but when he tries to use it with any of his amps, there is LOUD hiss, even before turning up the volume on the guitar.  We tried assorted setups of going into the effects loop, or using the guitar out instead of the stereo outs..  but all had their version of either killing the tone, or noise.

I do have some other questions... but simply to start..

He has a Carvin 1 x 12 tweed combo amp that he wants to use with the looper.   Are there any special settings? I have a Helix and there are certain output and input level settings to set based on how you want to connect to an amp so I'm thinking this is the step he's missing.

Additionally,  He wants to send a signal to his amp (for his stage monitor) and the PA.  He's currently micing, but it seems like he should be able to get line out somehow.

Finally, how does one ByPass the JM4?  The Carvin is a great sounding amp all by itself.  There are some tunes where he doesn't want the signal going through the jm4 at all, just bypass direct to the amp.  

Thanks in advance... and yes I looked in the manual and seached...  I guess I wasn't asking the right questions because I came up empty.

Miles

I've been out my jm4. It s been a while since I got it... so I wanted to hook it up on my amp, but no sound goes out... is there a problem? Can you help me? Thank you

What I want to do :

When Load a ".wav sound from my SD card", I'd like one of my "custom guitar tone" to be automatically loaded also. 

I read in manual : "By default, loading a Recording will automatically load a custom-crafted guitar tone".

So is the a way to set such an association between my own custum stuff ? 

Do i have to save the wav sd file to "Internal Recording" to do that ? 

Please Help a new JM4 user trying to write in english ;-p 

Thanks 

Have a nice day 

Do I have to absolutly upgarde my firmware to have the ability import files from an SD card? also do they have to be .Wav, or can they 

be MP3 files for the JM4? I Have version D.SP 2.00/MCU 1.05

Thanks to all.

Troy

I just bought this already used controller and I am trying to make some use out of it through my Spider IV 30. I installed the software, but I don't understand a thing about it. I would like someone to tell me how can I customize my channels on the amp etc etc, get total use out of the board.

Thank you

how can i check which firmwareversion is installed on the JM4 Looper?

I bought it last week. Perhaps the firmware is already up to date?

Greetings

Christian

Can anyone tell me the voltage of my JM4.. I am on tour currently in Asia and in my last move, lost my power supply for my JM4 somehow.  If I remember correctly, it was 9V.... but something in my heads says that too easy..  is it 9VDC or 9VAC.. and what is the current usage.. At a guess, remembering the size, I would say it was about 2 or 2.5 Amps  (2000mA or 2.500mA)...    Can some look at their power supply and tell me what it says on there..  I have a show tonight and need to buy a power supply urgently within next few hours from the local electronics shop, until I can replace it with the original..

Thanks,

Sky..

1) Out of ALL those DRUM loops, are there really no odd meter grooves? 3/4, 5/4, 7/8?? AND no jazz.. basic medium swing (without back beat!), no jazz waltz?

2) Setting the tempo for a drum loop should not require bending over selecting and scrolling through that tiny screen, it should be foot tap-able!

3) Because of my first 2 comments... I would like to run a drum machine (or in my case the fantastic drum beats+ app), and a bass/guitar through the JM4 and record a loop in real time. Does the JM4 not allow for more than 1 input at a time? Even the lowest end Boss RC looper has inputs a+b, which can both be recorded simultaneously to a loop. ie: a drum machine to A, and a bass to B.. play along to the groove until you're ready, then hit the looper and make a loop of any length... both signals are looped. AS far as i can tell, you can only have one input being looped at a time with the JM4? 

Conclusion/Comments:

-I could be corrected, but the JM4 drum tracks overlooked some very basic jazz grooves (while overloading on tiny variations of rock grooves), and not having the tempo foot tap-able (or even a tactile and quickly accessed scroll wheel) is a major pain. The fact that there is a TAP button on there, but is only for the time based effects and not the track tempos is funny!

-More than 1 input at a time would allow a bassist and a guitar player to track a loop at the same time.. or a drum machine and bass.. 2 guitarists... etc...

-As I have read repeatedly throughout this forum.. who buys this thing for the amp models and effects!? Make a kickass LOOPER Line 6, see what all other loopers  do well, and interview a cross section of musicians who use it for gigging and practice, and get it ALL in there!  The Boss RC stations do most these things, I just wish they had more drum play along tracks than the 10ish on there (again with no basic jazz, or even a met that doesn't accent on beat 1 of  4/4).

The unit has no warranty left. I had the same kind of thing happen to a brand new POD HD500X when it came out. I got a replacement for that from warranty though. This looper on the other hand, having no warranty left and no way to flash..any ideas?

I'm looking for a looper and found the JM-4, downloaded the manual but couldn't find an answer to this. So I need some help from the JM-4 owners, please.

I'd like to build some loops for one song (e.g. verse, chorus, solo) and switch between them live with the footswitches in record select mode. But how does the JM-4 react? Does it finish the actual loop before starting the next selected or does it start immidiately after pressing the footswitch?

Can the JM-4 handle my needs? I like to have seperate loops for different songparts to be flexible (e.g. extend Solo, repeat chorus...)

Thanks for your help!

I am looking for a speaker which i can connect to the jm4 instead of using headphone or amplifier.

Is it possible to use a monitor ? Has this speaker to be an active speaker?

Thanks

Chris

Cheers!

I am looking for help on issues with my DL4. I know this is for the JM4, but if someone can help or offer advice where to seek help it would be appreciated.

I recently got my DL4. After experimenting with the loop sampler using my micro korg - i realized after recording a loop, the sampled loop will slowly fade out... eventually to no sound at all. This cant be normal for this device?/ What is there to do about this?

Thanks-

kk

Does anyone have the real names of the Songs that come with the JM4 for example I can tell  unexcited it the " The thrill is gone" 

Thanks

Troy

I have updated the firmware and even changed the power supply with no luck.

Pedal works again after leaving the unit off for a while.Then it repeats the same problem. Anyone can help please?

I tried to put my JM4 at the end of my guitar signal. So I could send  my effects to the JM4, Not using the on board ones. For some reason it didn't give me any sound through the JM4 to record. I couldn't figure out why and gave up. Is there a way of doing this? I need to record a rythym track using different reverb effects that I want to loop. Without using any on board effects or sounds. Anyyone's help with this would be appreciated.

Thanks Dave

Thanks,

John

I also have a HD500 and JTV which means i can't put the JM4 directly in front of the guitar when using a VDI cable.

The ideal would be to have the ability to have a drum track running then record a rhythm over the top and then change patches on the HD500 and be able to play lead without the patch change effecting the sound of the rhythm part.

Any help would be appreciated. I have tried but to no avail. I have asked in the POD HD forum and got no response.

There are so many inputs and outputs on the back of a HD500 that there must be some way of configuring it.

Regards

My JM4 suddenly stopped working. When I hit the record foot switch nothing happens. So I decided to try to update the firmware before trying to replace the foot witch. Formatted the 2gb SD card with my PC (FAT) then formatted the SD card in the JM4. Selected "save all recordings to SD card".

It now reads "Line 6" for the SD card name when inserted into the PC, but no data is found.

What am I missing here? Also, where can I find a foot switch for this unit?  

Thanks!   

I watched several videos on YouTube that featured the Line6 JM4 Looper and I have a good feeling about this looper because it fits pretty much to my ideas of practicing and hopefully recording stuff :-)

I have some questions:

1. nowadays you'll normally get 16 or 32 GB SD-cards for a "normal" price. 2 GB is pretty much outdated and therefore expensive - is there an upgrade available to the JM4 hardware/bios so i could use any SD-card bigger than 2 GB?

2. I am a guitar player in a metal band. I'd like to record "songs" with the JM4 and save them as WAV files to my computer and than share the songs with my band via Dropbox:
=> Is it possible to save my recordings along with the drums-samples that are stored on the JM4? Or does it only save MY recordings/loops (means: everything i record WITHOUT drums)?

3. I want to record loop 1 = rythm guitar, loop 2 = BASS guitar, loop 3 = solo guitar und save all INCLUDING the JM4-owned drums to a WAV file that i can submit via USB to my PC (Win7 or Mac) ?

4. Can I change the instrument in between while recording the loops? That means changings the cable from guitar to bass-guitar..?

5. I read the JM4 has 24 minutes to record loops - is it enough to record guitar 1, guitar 2 solo and bass guitar?

6. Are the knobs are all really (still) made of plastic??? Or are they upgraded in between / made of metal (which would be nice for use outside the living-room ;-)  ?

Thanks a lot for your reply!

nuckel

I know the Songs library provides the 'Key', but Is there a listing (PDF file) for each of the songs

and what the chord progressions are?

Thanks,

John

thanks for a great product! 

Doug

I have a JM4 which has been working just fine, but last week I noticed when I turned it on the volume was reduced considerably. I would say around 70% less.

I just assumed as the guitar or amp volume had been adjusted, or the master volume on the JM4, but no they were all OK. The master volume on the JM4 was around 15% (as standard) and the unit was loud. It now needs to be around 60-70% mark to get the same volume but it brings with it a large amount of unwanted noise.

I did not mess with the unit or change any settings etc, just turned it off. Turned it back on 2-3 hours later and noticed this instantly.

I have searched Google about this and it leads me to this site with similar questions, but I can't find a fix or answer as they seem to have been archived?

Any help appreciated.

GW

P.S. I have tried all the obvious cables etc. If I take the guitar lead from the JM4 straight into my amp it's like back to the future volume in comparison. 

I don't need all the Amps and effects of the JM4, but I do need a good drum track, and plenty of room to phrase and loop. I figure having a Line 6 HD500, and using a G30 wireless, and an L6 singing mic, I might stay true to the brand.

I want your honest opinions of the Jm4. I've also been looking at the Dugitech Jamman Solo Xt. Thanks.