Schmalle

No. It should be very easy to fix this for Line6 though. Open a support ticket , tell them that you can't accomplish this right now and hope that they add this in a future update.

This switch inverter device would be used between Helix' Ext Amp and the amp's channel switching socket. It would not be in the (audio) signal chain.

Helix' Ext Amp switching is transistor based - no relay used. This kind of topology is called an open collector switch. Again: The most efficient way to invert the switching is to put it in the firmware - a blind spot on Line 6's side. I don't know a commercially available device that does exactly what you want. The next best thing that comes to mind is probably a midi switcher. If I'd build a device like that it would be based around a transistor (BC547, BC548, 2N2222...) to invert the switching. Here is what would be needed for one switching channel: two resistors (R1=10k Ohm pullup, R2=4.7k Ohm base resistor) a diode or two to protect the transistor an external power supply input socket two 1/4" sockets (in and out) a case some wire soldering iron circuit board (optional) Disclaimer: I just own a Stomp that has no Ext Amp out. I can't test this on my own.

You've hit a blind spot in HX functionality and won't be able to achieve your goal without added electronics. Open a support ticket and ask them something like: That's worth a shot.

It's true that there is no specialized power amp block. Bummer, right? - Kind of, but probably not really: There are many amps with power amps. Some of the amp models come with a very simple preamp section. You may use that fact to achieve your goal. Try the A30 Fawn Normal or the Tweed Blues Normal. As a rule of thumb start with Bass and Treble to zero and Mids to 10 (if it has a mid control). Why? - Because most amp's tone controls produce a mid cut when everything is set to noon and we want a neutral sound from it. Another approach: Compare the activated amp model (that you use for power amp sim) with the bypassed one. Try to dial it in so that it as neutral as possible to get a feel for the amp and to get a good starting point. Obviously you need to start with the question: What do I want to achieve with this power amp simulation? Saturation? Power amp sag / compression? A different frequency spectrum?

The underlying assumption here is that they modeled the same Deluxe Reverb specimen twice. I highly doubt that and would bet money that these are different Deluxes.

It's a hardware problem of the rotary encoder. Contact cleaner can fix it (at least temporarily). Replacing the encoders can and has been done by members in this forum.

If it is not an external noise source: Maybe the internal power supply started to whine? Could be a bad capacitor or a coil/transformer vibration. Contact support! It would be nice if you report back and tell us the cause for future users.

Well, I read your OP differently. That lowers the probability of it being a no-ground issue. Does your Helix produce this sound without a guitar connected? Or do you have to connect a guitar and open up the guitar's volume for it to occur? - if so - does it change in intensity with the guitar's position in the room? The noise source might be a noise emitting device in the room. So does this occur in a different room?

Ok. Usually this kind of noise can be picked up if there is either no ground connection or more than one (ground loop). We can exclude a ground loop based on your description. The fact that it goes away if the Helix is plugged into a (grounded) amp points to a missing ground connection. Helix is grounded by the power cable which might be defective - so try a different power cable. It could also be an ungrounded power outlet. So try it in a different room.

Which Helix is it? Floor, LT, Stomp?

@mautejIt probably doesn't add latency, because in true spillover mode the DSP's are working one for the current preset and one for the preset that is loading. It's like having two HX Stomps in parallel where only one is providing signal. There is no DSP chaining like in a Path A -> Path B configuration, so I suspect no added latency. I don't have a Helix so I can't verify this with measured data. That said the increase in latency of a two path patch is marginal (a fraction of a millisecond) and shouldn't be an issue.

Setting Global Settings > Footswitches > Stomp Mode to 6 Switch gives you all 6 switches to program in Stomp Mode only (hence the name). Set the Snapshot Command's Press parameter to the snapshot you want to navigate to (instead of Next).

It has to be programed per preset (aka patch). There is no global mode that does what you specified.

Set Global Settings > Footswitches > Stomp Mode to 6 Switch. Use Stomp Mode. Program the three footswitches by assigning each with a Snapshot Command (1, 2, 3) using Command Center. This has to be done per patch.

"Center" is 0%. Tip: Save the block as favorite for easy access and name it "FlipFlopper" or something even funnier. ;) Have fun.

To invert the phase set up a Stereo Width block [Volume/Pan (Stereo)] like this: Width Center, LR Swap Off, Balance R100, Level 0.0dB, RPolarity Invert ...and use a (any) mono block after it. Why do I need a mono block after it you ask? With the above mentioned setting the inverted signal leaves the block on the right channel only (left muted). A mono block after it automatically sums L (no signal) and R (flipped phase signal).

A suggestion would be to use a MIDI monitoring program to track all MIDI messages. Maybe that reveals something suspicious.

A total noob with a cave of forgotten gear? Find the error.

If you haven't been successful yet: start with using Helix in the loop. guitar -> VH4 input VH4 send -> Helix in Helix out -> VH4 parallel return Engage Send 2 button on the front panel and set the "Volume Parallel Loop" knob to noon. In Helix create an empty patch, select a reverb block and set it's Mix parameter to 100%. Crank Helix's VOLUME knob. You should now hear your VH4 sound with reverb and you should be able to dial in the amount with Vh4's "Volume Parallel Loop" knob.

You can contact support. I asked for the specifics of a different part which they provided.

Of those four links listed Electronic Music Services looks the best to me. The two guys doing repairs of music electronics for a long time and have great reputation according to their reviews on Google.

New Features & Improvements (3.83) New Dynamics Models: Dynamics > Stereo Width - Control the stereo field width of your signal Dynamics > Stereo Imager - Advanced stereo imaging control Dynamics > Gain - Simple, transparent gain staging Dynamics > Volume Pedal - Emulation of a classic volume pedal Dynamics > Pan - Stereo panning control MIDI Enhancements: Improved MIDI Clock Performance: Significantly enhanced MIDI clock stability and accuracy with a redesigned MIDI clock engine. Users should experience more precise tempo synchronization with external MIDI devices. MIDI Clock Auto Mode: Refined behavior when MIDI Clock RX is set to Auto, improving how the device handles loss of MIDI clock signal. Preset Change MIDI Handling: Improved how MIDI CC events are processed during preset changes, reducing potential conflicts. Tempo & Timing Improvements: Major Tempo Handling Update: Comprehensive improvements to tempo source management and switching, providing more reliable behavior when changing between internal and external tempo sources. Display Updates: Enhanced tempo source selection display to correctly reflect the current state. Bug Fixes (3.83) Fixed an issue where parameter changes could be incorrectly blocked in certain scenarios. Resolved tempo synchronization issues when switching between tempo sources. Corrected MIDI clock loss detection in specific edge cases. Compatible OS: Windows 10, Windows 11, Mac OS X, macOS Big Sur, macOS Monterey, macOS Sonoma, macOS Tahoe, macOS Ventura

It sounds like you're having a very frustrating experience! Here is a rewritten version of your issue that is clearer and easier for others to understand: Line 6 Helix Floor Connection Issues with HX Edit I'm having persistent connection issues with my Line 6 Helix Floor and the HX Edit software on both Mac and Windows operating systems. The main problem is that the Helix will not reliably connect to HX Edit via USB. I've tried multiple USB cables, including another known-good cable, but the issue persists. When a connection is established, it is unstable. It typically stays connected for only a few minutes before disconnecting. This connecting/disconnecting cycle repeats several times. Glitching and Freezing: While it is briefly connected, the Helix Floor unit itself (and likely the HX Edit display) will start glitching and freezing. I'm unable to resolve this and I've already tried to open a support ticket with Line 6, but the system is not allowing me to submit it. Is that a fair rewrite? Concerning the support ticket problem, how did you realize that the system doesn't allow to submit it? Could you tell what specific Mac and Windows operating systems you are using (e.g., macOS Sonoma, Windows 11) and what troubleshooting steps you've already taken (besides changing the cable)? This information might help in suggesting a solution.