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Found 4 results

  1. XEQT

    Grounded sockets

    Hi ! Do i need to use grounded (erathed) sockets with Helix or will it work without it any way. I get a strange signal in it. If I put a guitar in it gives a high noise problem. If i connect it to my soundcard it works perfect. No high noise or anything. Both have grounded cables input but there is no ground connected to them so is that whats making the noise or is the cpu fried in my rack unit ?? // Roberth
  2. Hi! Wondering if anyone knows if a new input jack would fix this. Or if i should chase something else. Here is what happens: JTV89F -> VDI -> HELIX. Mags give extra hum until I touch the end shroud of the VDI cable. Either end will do it. JTV end or HELIX end. It hums like a single coil. Using my 69S through the same path and I do not have the same issue. No change whatsoever when touching an end of the cable so I am thinking that at least rules out other components in the chain. Thoughts?
  3. I am getting nasty electric shocks from guitar to microphone with my X3 Live. I have a much loved Pod X3 Live - and I have recently discovered (in our new practice room setup) that I get shocks when holding guitar and a properly grounded microphone. I have troubleshooted the system and mains supply thoroughly, and traced this to the way the X3 Live processes incoming phantom power. I have excluded bad grounds on all devices, except the Line 6 POD X3 which has no independent ground via its (original) Line 6 power supply - (ie the ground is 'floating' as it should). The negative power supply connection is not ground. I bought a new digital multi-meter to troubleshoot this. I though it was a mic signal path problem at first but have now ruled that out. I've measured 48-50V between the guitar and any good ground, eg the vocal mike in our studio /rehearsal setup - and other guitars, rack kit chassis etc. Though just 50V, it's still a noticeable shock, a lip on the microphone was the first experience and is quite a 'belt' very much felt with fingers too. The voltage drops to zero when I turn off the (global) phantom power on mixer My signal path is: Guitar > Pod X3 > XLR out L to Desk (for monitoring) and XLR out R straigh into to a Firewire 8/8 Recording interface. If I have phantom on on either of those, there is 48-50V potential between the guitar ground and a microphone. Turn both off, no voltage present. The conclusion I have come to is that there is a problem in the Line 6 Pod X3 Live unit that's causing the phantom potential to raise the guitar input's ground wire to become 50V above ground 'proper'. As our desk is Phantom Power 'global' (and other devices like active DI boxes and condensers need the phantom), it's not something I can turn off except perhaps by buying a decoupling transformer as a phantom blocker. I've tested adding a ground wire from my guitar to another guitar (other ground) - to check that the mixer phantom power supply does not object to that by just sending the unwanted 50V to ground - and remaining phantom-powered items connected to the board are still operating OK. They do. So I'm thinking to jury-rig a 'proper' ground to the Pod X3 Live unit somehow to defeat this issue. I'm minded to make a cable that connects one end to a good ground- the mains socket - and then using only the green earth wire of course, and connect this ground to the X3 Live to an used connection (XLR Microphone input Pin 1 ) which my meter tells me is on the same ground buss as the guitar input (as it should be). I am well out of warranty with Line 6 on this unit, while Line 6 have been very helpful to me with an issue I had once before (on my Variax 300) - I'm not expecting their help on this or for this to become a 'send back for repair issue', and am not sure if it's a problem that has always been present and I have just noticed it... My question to the forum community is: has anyone else experienced anything like this? Perhaps in the X3 schematics there is something that shows the circuit schematic of how phantom power coming into the X3 Live through the Direct Outs as is in my case, on pins 2&3 is raising the ground voltage of the guitar input to 50V above 'good' ground. Perhaps there is an internal component that has failed. If so, what would it be? Is there an internal decouplng transformer to disregard any incoming phantom voltage that has failed? Thanks for your time reading this.
  4. Howdy all, My variax bass 700 just started making a horrible crackling noise come from my amp. It happens when my XPS-DI is plugged in and is powering the bass. It doesn't happen on just battery power. It doesn't happen with a normal (Not TRS) cable between the DI and bass. I don't think it is the cables, as I've checked each one and swapped them out without issue. The crackling is separate from the volume of the bass. It doesn't happen by moving the cable at all, the cable is a livewire TRS, and is only a week old. I ordered a new planet waves TRS cable to verify if the cable is the issue. It is always the same distinctive crackle, and I can't seem to "cause" it, it just happens from time to time. At this point, I think it's either a) the bass when it's powered by the DI, b) the DI itself, but only with a TRS cable to the 700, or C) the TRS cable itself, but only the power sending section that's different from a mono 1/4" cable. Has anyone else had this happen? On another note, I just recently recalibrated the strings, and the red LED hasn't worked since I got the bass used some time ago. I just picked up the DI box off ebay. All the sound models seem to work well otherwise. I have cleaned all the pots with denatured alcohol, so I doubt that it's dirty connections.
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