Kwendling

This thread is huge, so let me reiterate something. I have the plink on my 6th string. I swapped the piezo connectors at the mother board. Then, the 6th string was normal and the plink moved to the 5th. So, same string, same setup, pick and attack and even same piezo. I made the problem move based on the input to the board. That's not mechanical. There is something different on the processing through the 6th string input.

Anything new? Sweetwater contacted L6 and got the same reply about it being inherent to distorted and over driven patches and mechanical issues. That simply can't be if swapping piezo inputs moves the problem and then the original string sounds fine. That's B.S. I think I'm just going to return it and stay away from L6 for my next guitar.

I have not sent mine in to Line 6. So far, only recieved a second JTV 89 from SW, and that has the same issue. I'll see if they can track the one I am sending right back ( the one I did test of switching connectors) and see if they can send back to L6. I hope they would not send it to another customer . As for why some guitars seem to do it and some do not, I would think the models regularly used, playing styles, and post guitar preamp and effects could hide or highlight the issue. Someone that is playing clean and mostly acoustic models might not ever notice a problem. The other possibility is that there is a bad batch of boards or electronics out there. Maybe both. If I actually get one that does not have this issue, I would be absolutely thrilled. I may have to go find some stores that have it in stock and just test as many as I can. How much info on the specific hardware and electronics could be gleaned from just the guitar serial number? Would that also track any other parts' serial numbers or manufacture runs?

How is it a blind alley? I realize that each input is optimized for a specific string, but in my case, the test shows both piezo are working fine and the source waves those piezos are picking up are fine. The mechanics are fine. There is something wrong post-piezo. How do we, or more likely Line 6, further isolate the problem? With the one that had the bridge, piezos and circuit board replaced, did they try the same test again. Again, the act of replacing the bridge, the piezos, and the circuit board do not rule out any of those components, unless they came from the same model guitar and that one was tested and found to not have the issue, before being installed on the problem guitar. I'm hoping I can get sweetwater to test this before they send me guitar #3...

What part of the individual guitar would be wrong, if the 6th string sounded fine when the piezo connector was moved? When you reference parts of the guitar, do you include circuit boards, etc?

What else is pre-piezo besides the mechanical wave and any physical issues like frets or something else vibrating? My test of swapping the E and A inputs at the circuit board seems to point to one of 2 things. Either both strings produce some mechanical noise, and either software or electronics is cleaning up on one and not the other, OR, both mechanical signals are fine, and either software or electronics are adding the artifacts.

I have the exact same problems, 2 jtv 89s. 6th string sounds awful, plainly and almost harmonic overtone in Most models, especially Spank and Lester. I did the same test with switching the piezo connection on 5th and 6th string. Then, 6th string was fine, 5th string then had the awful sound. This means both the mechanics of the 6th string were fine, as was the piezo on the 6th. I'm sorry, Line 6 technician, but your argument that if the electronics were replaced than the issue can't be with the electronics is ridiculous. You could only make that statement if you took the electronics out of a known-working guitar, and put into a second guitar, and the 2nd one still did not work. if you replace defective electronics with more defective electronics, that does not prove anything. That's like saying you changed a flat tire, but put on a different flat tire and then say the bumpy ride can't be the tire, I replaced the tire. Admit there is a problem. Your customers will be much more likely to remain customers, if you can admit it and state you are working on a solution. If not, you will lose customers at an alarming rate.