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I spent a lot of time going through the settings the Tone War guy suggested for all the metal amps and got those where they sounded great. I came across this by accident looking for different blocks to try...At the very end of your final chain get a stereo model of the Bass DI (located in the Dist section) put the Bass and Treb at 4-5 and the level to suit, this will give your preset a full rich low end def and sparkle presence no EQ or Comp can do. Try it you will be adding it to your presets asap. I have no idea what it was intended for but man it fixes the punch and feel of the real amp that is missing.

A reminder to all users that this forum is a peer-to-peer user forum. No one from Line 6, particularly not the developers, is required to hang out here. Some do occasionally out of personal interest but we as users shouldn’t count on it. Nobody here can fix a bug or implement a new feature. Accordingly, this is not the official place to make bug reports or feature requests. If you want your bug report or feature request to actually reach Line 6 you need to do something else. To report a bug, open a support ticket. https://line6.com/support/tickets/add.html To submit a feature request: https://line6.com/company/contact/productfeedback/

Sharing this because I went crazy trying to figure it out, and maybe it’ll save someone else some time. A few days ago, I tried logging into Line 6 Helix Stadium, but the QR code never appeared. The manual login didn’t work either. To make things worse, the HX Stadium App kept crashing, and I couldn’t update it from my computer or through Line 6 Central. Ironically, those were the two options the manufacturer recommended when I contacted support. Since I work in tech, something didn’t add up. Everything pointed to the app not connecting to the server, which explained why the QR wouldn’t generate. Then I thought: “What if it’s the time zone?” I tried something simple: Disabled automatic time synchronization Set the time manually And… BOOM! The QR popped up instantly, and I was able to log in without any issues. Hope this helps someone out there.

I have read the Stadium online manual from beginning to end. I realize it cannot be in download format because of the embedded videos. So, whether that is good news or bad news it is, in my humble opinion, just news. I realized answers to about 80% of the questions so far, including my 60% of questions, are in the manual. There are few typos regarding XL versus no XL but Line 6 may correct them once the non XL ships. I, for one, will be sitting down for about a week going through each step of the manual. The various sub displays on the touch screen make it worth it for me. If I am not back in a week that means I wasn't able to shower after woodshedding and my wife isn't allowing me in the house until I go YMCA and shower there. I can only speak for myself in that, after reading the complete manual and checking the videos, it will be well worth the trouble for me. Wish me luck. jpd

I captured a bit of Steve Sterlacci's video: and imported into Logic so I could use Match EQ to learn more about the differences between Helix Floor and Helix Stadium Agoura amp models. Steve clearly demonstrates the long known issue with Helix Floor having a somewhat odd high-end emphasis (sometime call squirrels, fizz, ice-pick, etc.) that needed to be tamed with pretty aggressive high cuts in the cab block. The Agoura amp models don't see to have this emphasized and somewhat tiring high end. We can use Logic's Match EQ to get a better idea what EQ would be required to make Helix Floor more closely match the Agoura models, and maybe be better informed about how to EQ Helix Floor to tame the high end. The Match EQ graph is quite interesting: As we might have expected, there's additional high end in Helix Floor starting at around 1 kHz, gradually increasing to about 8 dB at around 6 kHz that Match EQ is cutting. What's surprising is the significant boost in the "air" frequencies about 6 kHz and up to 20 kHz. That could be part of the amp models, or the better hardware in Helix Stadium. Now I captured this off a YouTube video, so I don't expect the audio to be that great. And I only matched one sample from the video. So this might not be that accurate. But it perhaps gives us a starting point to know how a little more about how to tame the Helix Floor's high end. So try it, using a high cut at say 5 kHz, or parametric, graphic or even global EQ to match what Match EQ is suggesting. This might breath new life into your Helix Floor.

I'm wondering if the Stadium will have any or updated vocal effect integration similar to Headrush. I have been waiting for Line 6 to do this with my current Helix Floor but I guess it's never been a priority. I'd like to have a single unit to handle vocals and guitar that uses all new tech.

https://youlean.co/youlean-loudness-meter/ is a great tool for preset leveling.

I will be taking a two week hiatus from music starting this week. Hope you all have a great Christmas and a fun filled entrance into 2026. This will be the first year I did not applied for any music jobs during the end of year and first of year since 1967. My present to my family and myself is to be present this whole period. If I do not appear active for the next few weeks I am not being rude. Maybe you all and the Line 6 staff you may read this have a wonderful time this season! jpd

You'll never get an answer. Line 6 doesn't give a damn about its users.

Hi, Yes, no problem, providing you are using the latest version of the Firmware there shouldn't be any issues. Connect your Helix to your computer via USB, then simply drag and drop the preset .hlx file into an empty "New Preset" slot (or overwrite and existing one). It should then appear on your hardware. Done. Note: The Helix uses 2 DSP chips whereas the the HX Stomp is limited to a single chip. This means that a preset intended for use on the Stomp, or XL, can only occupy blocks on a single path. It is also possible to create a preset on your Helix which uses only a single path, and provided it doesn't exceed the single DSP and block usage, it can be used in a single chip unit. Hope this helps/makes sense.

Well, at least I think it's cool :) A lot of people like to layer guitar power chords. I don't, because I think it makes the part lose focus. But I do like big guitar sounds, especially for power chords. So, here's a studio technique I stumbled on that creates a layered sound, but doesn't lose focus: In one Helix path, split the guitar through two different, but similar amp+cabs. Pan one amp hard left and one amp hard right. This should give a big stereo image. If not, the cabs probably aren't different enough Dedicate the other path to an undistorted guitar sound, and pan it to the center. Use effects on the undistorted guitar like chorus, delay, reverb, whatever. Mix the center so it blends well with the amps. The effects on the undistorted guitar add a clarity to the sound's processing you normally don't have when adding effects to distorted amps. The undistorted guitar path is the key to making this faux-layered sound work, because it provides a defined, clear sound that complements the sludge of distorted power chords. There's a sweet spot for this level - soft enough not to dominate, but loud enough to contribute to the overall sound. (Also note that this technique steals a page from LCR mixing techniques.) The bottom line is you now have three layered guitar sounds, but only one guitar part. This retains the part's focus by avoiding potential conflicts among multiple parts. Try it!

I'm sorry to hear that, let's see if we can fix it. First of all, was including the contents for all the chapters on the Sweetwater site not sufficient? I did that so people would know what topics to expect. But second, and more importantly, these books are updated frequently. If you can describe what would make the book more helpful, that could provide guidance on additional material to include. The book isn't going away any time soon, there will definitely be more updates. Many reader suggestions have gone into the updates since v1.0. Note that I try not to include material that's already covered in the manual, or is well-represented in videos on YouTube. The goal is to supplement the manual with more details about effects, and more applications. However, the reality is if there's something you think it missing, then it's probably missing for some other people who didn't take the time to write in. This is why I solicit feedback. I am committed to making this book at helpful as a possibly can, but I can't always guess what people want. If for some reason you don't want to do a public reply, you can use the contact email provided in the book.

The "best" sounding FRFR (a meaningless marketing term) for anything is so subjective as to be a pointless discussion. See TGP for dozens of such. I have a PC212+, HR FRFR112 and Rokit 6 studio monitors. They all sound good for different things and at different levels. The "best" sounding FRFR speaker is the one that YOU like best for YOUR application in YOUR listening environment. Which means that YOU would have to try them ALL to know which is "best". I know, not the answer you wanted. I mostly play my Helix through my Catalyst100 without IRs. If I played more "metal" I'd get a closed back cab and separate amp. For as often as I play that style, running the XLR Out from the Cat with emulation OFF into the PC212+ with speaker emulation (not FRFR) sounds good enough. YMMV.

If you are on Windows, please look in Device Manager and let us know if you see 'Helix Stadium Bulk Transfer' listed under 'Other Devices.' You may see a blue question mark inside a white circle associated with it. That means the Line 6's Windows USB driver didn't load which will explain the Stadium app crashing every time you attempt to connect to the Stadium XL. I have a support ticket submitted for this. For me personally, it is a moot issue at this point since I decided to order a MacBook Air to work around the issue.

Just received the THON (Thomann) case for my Stadium. I love their cases - have been using one for many years. Built like a tank AND cheaper than the backpack :). It can be operated from inside the lid. It has room in front (where the vents are) and the unit sits suspended by foam sides about 2 cm in the air, so there is plenty of room for heat dissipation underneath. There is also room behind the unit, for the power cable.

please check to see if you have it set (global settings) to automatically assign the block to a footswitch. If this is set to manual, then adding a wah or volume will not work correctly until you make their assignments manually. easiest fix is to delete them, turn on the automatic add and add them again. Hope that helps.

Yes. In your Stomp XL preset use separate amp and cab models (not an integrated amp+cab) and place a SEND block between the amp and cab blocks in the signal chain. Connect the SEND output to the amp’s cab input. Connect the main outputs to FOH. Make sure the output and input levels match. You can position any FX blocks before or after the SEND block depending on whether you want them to be heard in your onstage cab or not.

Yes. That’s what I did: backup factory reset restore backup delete songs reimport kind of a pain but it’s still working for me!

Great discussion. Being able to recall songs via midi (with an associated Preset) will be critical for me (and I suspect others). I may delay purchasing the Stadium until I know this feature has been added. In my small acoustic duo, I use OnSong on an iPad to send PC changes to my devices (BeatBuddy, HX Stomp, and Rc500 looper (backing tracks)) for each/every song. I then use a Morningstar MC8 to control these devices while performing the song. My intent is/was for the Stadium to replace the HX Stomp, RC500, and Morningstar (smaller footprint and less complexity). I go into every gig with a pre-built setlist (in OnSong), but invariably every show is different and we make changes on-the-fly depending on the vibe in the room, audience requests, etc. In those situations, all I need to do is select the song in OnSong, and it loads the beats and/or backing tracks and presets across all my devices - no menu diving, no tap dancing. I get that I could build Setlists (presets) or Playlists (songs) in Stadium, but those don't seem to easily allow for flexibility when ad-hoc set list changes are taking place. The internal Set Lists/Play Lists probably will work fine for larger shows with pre-defined lists that won't likely change. For smaller acts, we're going to need flexibility to call up songs (with associated presets) in a much more flexible manner. Showcase has such promise to help smaller acts add new elements to their shows and I hope Line6 can incorporate features that meet the needs of both large and small acts/performers.

I connected the send 1 from my Stadium to the input for a stage monitor I have on hand. I set the FX loop 1 output to instrument because line level was too loud. Then I set the output for the tuner to send 1. When I used the tuner there is no output to FOH and the monitor gave me my ""on stage" audio. Adjusting the level output on the monitor, I was able to have a very controlled output volume to listen to my tuning as well as if I wanted to "test" a part without going through the board. If you have something like a Behringer EUROLIVE B105D (or smaller) and a On-Stage SSAS7000B it could be a solution for about $150.00 without having to bend over. Just a thought. jpd

Why is there no option to have the preset BPM persistently displayed above the tap tempo switch like there was in Helix floor? I have looked everything in global settings as well as the same spot in the OG Helix Displays settings. Would love for this to be included in the next update, please!

My levels are about the same. I wouldn’t worry about it unless you hear something you think isn’t right. I pay more attention to the signal level indicator in the Output block; if that turns red it means there’s clipping. Also, you can test the output level meter (the one on the right thwt you refer to) in the Amp block. If it behaves like a normal level meter it might change colour to orange and then red as you raise the amp’s Drive/Gain, Master, and/or Channel levels. I don’t know if it actually does change, but if you can make it change colour then you can be confident everything’s OK as long as it stays green.

Yes, custom setlists is the way to go for live events. Be aware, though, that the implementation of setlists is completely different in Stadium vs. OG Helix. There is a big conceptual change, and I think some bugs that still need to be worked out. The following is aimed at all readers here, not you specifically….. Conceptually, the USER setlist is now the only place where the actual presets live. A custom setlist is a list of aliases (pointers) to the USER setlist presets. Read the associated section in the online manual for clarification. This is still early days for the new mindset and implementation. I have experienced and reported some behaviours that I think are bugs: - when you Export a preset from the USER preset view it creates the associated preset file on your computer, as expected. When you Export a preset from a custom setlist view it creates a copy of the alias on your computer. If you’re not careful you can overwrite the actual preset on your computer. I think Exporting presets from the setlist view should be disabled; I can’t see any use for saving a single alias in a file. I can see a use for exporting/saving a setlist of aliases. - I have also experienced duplicates. I think there should only be a single copy of any preset name. I think any bracketed duplicate preset name is the result of a bug. If it’s a different preset it should have a different name; if it’s actually a duplicate of the same preset it shouldn’t exist. That’s the whole idea of the new implementation. My suggestion at this point, until some bugs are resolved, is to edit and Save presets only from the USER setlist view. The interaction between the presets themselves in the USER setlist and their aliases in custom setlists is where I think the bugs live. This will require careful attention and some extra touches (on the device) or mouse clicks (in the app/Librarian) for a little while to make sure you are in the USER setlist view but it should reduce the unexpected behaviours. I may end up eating my words here. If there is a valid reason for duplicate presets to exist in the USER setlist I would like to hear it. Meantime I encourage everyone experiencing duplicate preset names to open a support ticket to report it. The more info and evidence Line 6 has of these bugs the more likely they will get fixed sooner than later.

When are we going to get a printable file version of the manual? Some of us like to read and understand things to make better use of the unit's features. Especially with the upgrades coming for Showcase and Proxy. The on screen stuff is great and all but something of this depth and complexity needs a manual.

I just received my Stadium XL yesterday and I was able to stay connected for 4 hours.... no disconnects from the edit software (Windows). I have an eero mesh Wi-Fi (currently connected to the main AP) and my AP is in another room, about 15 feet away. I am connected at 5Ghz speeds on both the PC and the stadium. So... for me very stable. I would suggest that if you are having issues, try to get both devices on the same speed but if your AP is very far away, try to get both devices on the 2.4Ghz channel. This may not be a bug for Line6 to address.

Hope this helps as well - In the list view for amps (not legacy amps) there will be a thin gray line and any amp above is Agora and those below are HX.

STFW means Search the F*&$ Website! I just want to highlight that Line 6 has taken a new approach to the product manual for Helix Stadium. It is not a downloadable PDF file. Instead, it is its own integrated, cross-referenced, well indexed, searchable website that includes links to videos where appropriate. It also includes the Helix Stadium app ‘manual’. The Support -> Manuals area provides a link to this new ‘manual’. I strongly suggest you check it out. For your convenience… https://line6.com/helix-stadium-manual/ We all know that it is common etiquette in user forums to do at least some research for existing answers to questions, especially basic operational questions, before asking in the forum. This new approach to the manual makes that very simple. So, in future, rather than suggesting that someone RTFM I will just say (politely, of course) STFW.

That may be the case, but it is the most likely place to find Eric in his guise of Digital_Igloo. Plus it was in TGP where he first mentioned the continued support for the original Helix range of products.

Hi, Alex, I’m not sure if this will clarify if you have found a bug, or not, but it is from “Sam”, the guy who designed the effect. https://www.afteraudio.com/musings/blog/helix-double-take-double-tracker-explained Hope this helps/makes sense. EDIT: If you think it is a genuine bug, then you really should raise a ticket with Customer Support, as no Line 6 employees hang out here, and therefore it maybe overlooked and it will never get fixed.

I think you’ve got the cart before the horse. It all boils down to computers and binary structures; powers of 2. The first step was a hardware design decision: how much memory space to allocate for preset storage on the device? For the full Helix devices it was decided that 1,024 (2 to the 10th power) presets would be stored. From there the presets were conceptually organized into 8 setlists of 128 presets; an arbitrary organization for human convenience. Then the presets were conceptually organized into 32 banks of 4, again for human convenience. Note that all the numbers are powers of 2; that’s driven by the nature of computer hardware. The final step was to decide on a convenient and affordable number of hardware footswitches to address and recall individual banks and presets. It was decided to use 2 configurable footswitches (Up/Down) for selecting banks, presets, and snapshots and 2 rows of 4 footswitches that could be configured for selecting individual presets and/or snapshots within a preset. Finally an arbitrary choice of A through D was made to label the 4 presets in a bank. So the A through D footswitch labels were derived from the preset structure and computer memory rather than the reverse.

This guy always turns 2 minutes of useful information into a 20 minute video ;). But I think I was able to sift out the useful parts. Thanks.

Your amp is MONO. Unless it isn't, which wouldn't matter because... Your Captor is MONO. The only stereo fx possible FROM the Captor is when you use the Two Notes FX. You cannot send stereo TO the Captor. You can put your amp into an HXFX Block, but you can't send that signal back to the Captor without creating a feedback loop because the Captor does not have its own internal FX Loop - it only has the one MONO input. In any case, if it DID have an internal FX Loop it would have to be STEREO to do what you want. The MONO solution I suggested previously is your only option with your existing gear.

The correct answer is: Tomorrow.

Hi, Well this is a really flawed argument before it even starts. Sticking any IR, or modelled cabinet, into a signal chain is never going to be real simply because of the very definition of "model"or "impulse response". My issue is, I'm a studio rat, and consequently the only real speakers involved in anything I do are my Kali Audio IN-8 V2 studio monitors, situated just over a metre away from each of my ears. Subsequently, anything that I have recorded using this set up will be burned onto a CD, or ported to a flash drive, and listened to in another environment, such as in a car, on a domestic hi-fi system, or whatever, and if is sounds good compared to commercially available audio productions, then that's good enough for me. I say that because in many recording studios that create the original audio that you eventually hear on CD, or some streaming device, it will have been made in a very similar fashion to the one I described - an audio engineer sitting in a control room listening to the mic'ed up guitar, bass cab (even a Helix, or whatever) through some studio monitors. What I'm getting at is, if you are using your Helix, with either an IR, or one of the newer cab models, and that final audio is output to a mono 12inch speaker in a wooden box, then it will bear no comparison to what I would hear from the same signal chain. Speakers are the final link in the chain of getting the audio out through the air between the cone and your ears. The tone will only be as good as that last link in the chain, even headphones. Playing live will be a very different experience, but the same applies - put any great audio signal through some cheapo small speakers and it will more than likely not sound very good. As noted by @silverhead in the post above, ‘REAL modelization’ is an oxymoron. Having said all that - in Eric's keynote speech at the launch of the Helix Stadium he does state that the new Agoura system it uses, allows the cab models to interact more dynamically with the amp model for a somewhat more real experience. I have not heard any audio examples of this new stuff, so it remains to be seen/heard how convincing this is, because every release of every update on any modelling platform (Helix, ToneX, AxeFX, et al) has claimed it is the most realistic recreation ever. Yeah, right. You want real - buy an amp and speaker cab and stick a mic in front - Note: you will probably need an audio engineer to make sound like it does on a recording. Hope this helps makes sense.

Helix Stadium!!! woooohoo!!! I love that they brought back the step design. Not sure if the foot switches are same as before. Looks pretty slick. Not a fan of the thinner EXP pedal... This thing will be so complicated....

It would be so nice to not be tied to Microsoft Windows or the equally bad Apple control freaks just to run HX Edit or Helix Native. Please provide us with Linux native apps. Thanks, John

I have it working better than before but had to max things right out to get a working clean sound; minimum gain, max master and channel volume. It sounds OK but you lose headroom on your other channels, if they're too loud then the clean sound is inaudible by comparison. On the whole I'm very, very happy with the PodExpress especially for the very small amount of money, but Line6, if you're listening, maybe a little more headroom on the only clean amp?

I have found that when doing A/B/C comparisons while building Quad Cortex, Helix and FM9 patches, that I often find the device I last edited sounds better to me then the others. And then I start trying to adjust the patches in the others to match the first one. It doesn't seem to matter which one is the starting or reference tone. There seems to be a "last-edit" bias in tone assessments. Often when I come back the next day with fresh ears I don't find the patch was as good as I thought, or that I matched them across devices as well as I thought. The lessons I take from this are: Ear fatigue is real and has a big impact on tone creation, especially when you're doing a lot of reference comparing. Your ears get saturated with the tone and start ignoring the differences. There appears to be a preference or bias for the last edited or loudest tone All of these modelers are great and can create fantastic tones with good usability. Comparing them should be to celebrate their differences. You can't go wrong with any of them, pick one (or more), play and have fun I use all three modelers for different purposes and in different contexts. I like Quad Cortex for its simplicity, elegant design, and small size. It gets used with my acoustic band, No Worries. I like Helix for anything that needs a Variax, VDI connectivity and patch integration are great. I still have two and use them a lot. I like the FM9 for rock gigs because of the great tones and FC layouts for flexible control. An HX Stomp is my goto device when I need something quick and small. But any of them can do anything I need well.

Go to The Gear Page>Digital and Modeling Gear. Search for posts by Digital Igloo. He is THE BOSS (aka Eric Klein - Chief Product Design Architect). He has repeatedly said "Not this year. Probably not next year either." That's the best you're going to get on the subject. Buy what you want now. You might not be here tomorrow.

HX Edit is probably an older version. When you open HX Edit and you are connected to the hardware, the screen shows the HARDWARE version number. To see the version number of HX Edit you need to go to "Help > About HX Edit" Then it pops up a window showing the HX Edit version.... it needs to be equal, or greater than the hardware version. If you have updated HX Edit and the new amps/effects are not showing up... then the opposite has happened. You didn't update the hardware!

A few ideas... Acoustically, there's a huge amount of interaction with a room, which acts as a filter. It will emphasize certain frequencies that Stomp won't emphasize on its own. So, carefully analyze the frequency response you hear acoustically that you like, and try to nail those same characteristics with the parametric EQ. A room also acts like a complex delay line that's heavy on the early reflections. Of course, a live venue will add its own reflections, but it may be that some very short delays (e.g., the ambience block) would supplement the reflections that the venue is adding. Because of this interaction with your room environment, when you move your head even the slightest bit you're experiencing stereo phase and level changes. It's hard to fake this with a guitar processor but subtle chorusing at a very slow speed can help the guitar seem more "alive." Some pickups have resonances that bring out weird midrange frequencies. Frankly the notch response on the Helix parametric isn't that great, but try creating as narrow a midrange notch as possible, and sweep it slowly in the midrange to see if that helps even out the sound more. Good luck! Hope this helps.

Each of those WAV files represents different configurations of microphones and microphone placements that were used to make that particular IR. Generally not all of them will be relevant to you and you would tend to settle on the ones that fit the kind of sound you want given whatever amp you decide to apply it to. When I was using IRs I ended up having way more IR entries in my list on my Helix than I ever needed. That all disappeared when I started using the new Helix cabs that are actually IRs but you can easily adjust the mic and mic positions without having a ton of different IRs loaded

Relative to a lot of the people on this forum - the Helix has been around a long time. And the questions you've asked have been answered (multiple times) in this and other forums (try the search funtion). There's a LOT of content on YouTube, Facebook etc that can help you will have to look for older material as the newer stuff is generally "whats this new feature". Suggest Jason Sadites as a great starting point. And, whilst none of us like to do it, read the manual - its a great resource. https://www.youtube.com/@JasonSadites https://line6.com/support/manuals/ There is no way to make the backing track sound good through an amp (through the LT or any other source) - it will always sound like its running through a guitar amp - some EQ will help a bit. You're better off having some form of seperate monitoring for the backing track - PA speaker(s), monitors, anything really.

I would also like to see Line 6 software officially support Linux. I already paid for Helix Native, but I would be willing to pay a 2nd time for a Linux version. I run a Windows virtual machine so that I can use HX Edit to update HX Stomp firmware, but the performance of software running in the VM sucks. If there are no plans to make HX Edit available on Linux, Line 6 should provide information about the communication protocol and file formats so the community can develop the software. Software to examine backup files exists, but this is far from what is needed: https://github.com/frankdeath/hx-tools

I have the same issue and it’s extremely frustrating. I cannot run HX one librarian, Line 6, Central and when I run the Line 6 updater it is just a blank page with nothing shown. I am signed in and I have tried everything that Line 6 has offered and others have offered With no luck. I’m running Windows 11 and I have been over the owners manual more times than I can count. Is there a mode that you have to put the pedal in? If so, I cannot find that out. I have also watched a few of the YouTube videos on updating but if you can’t load the app, the videos are useless. I have tried different ways to remedy the problem and I have tried the same fixes over and over. One of the suggestions is to write click then go to properties then to compatibility and uncheck run this program as an administrator. The trouble is, it’s not checked in the first place. So I have tried to check it close it try the app but still the same horrible results. If only Line 6 would pay attention to this problem because I see others have the same issue. I have also tried to do the same in the root with no luck. Kind of makes me want to throw this thing out a window. Please help.

So now that there is an editor, and cabability for more preset tweaking, do you think L6 will add a Customtone section for the Pod Express for preset sharing?

Yes, still true.

I just did a little test. I created a new custom setlist. As expected the view showed all Empty slots. I selected preset 1A and added an amp. I then saved the preset, still within the custom setlist view. I gave it a name when saving as a New Preset. It appeared as expected in the custom setlist view as preset 1A. I then immediately deleted the custom setlist, which disappeared from view as expected. Also as expected the new preset appeared and remained in the USER setlist where all presets actually live. It appeared not as 1A but as 10A which happened to be the first empty slot after the last named preset in the USER setlist view.

I read the Captor-x manual before I replied to your post. I'm sorry, but only the XLR and HP Outs are stereo. The INPUT is MONO, as is the speaker out. Unless I'm missing something, the only FX you're getting out of your amp's speaker are whatever effects are in your amp. From the Captor-x manual - "You can connect your cabinet to the SPEAKER OUT if you wish to hear your dry amp sound on stage". So, you're only using your amp to monitor your dry signal, you're using the playback system attached to your sound card to monitor your effected signal. There's nothing wrong with that but knowing the full picture would have saved me a lot of typing. I suppose that using both the dry amp and stereo effected playback system could be considered W/D/W... :-) As to your HUM problem. I use my Helix (or HX Stomp - same as HXFX but with amps) in 4cm with my Catalyst. No, I don't do that. I'm pretty sure that the cables should be wired XLR>TS, not TRS. Some other POSSIBILITIES: First, your amp. Especially if it is a TUBE amp, it can HUM. Most any hi-gain amp HUMS. Second, make sure that everything from your HXFX to your amp to your playback system and computer/DAW is connected to the same filtered surge/power strip and keep in mind that "switching" power supplies (aka wall warts), ESPECIALLY when used in combination vs using an isolated multi-output power supply, are notoriously noisy. Check to see that there are no major appliances or rheostats on the house circuit that the power strip is attached to. You can TRY using a Hum-buster type device between the Captor and HXFX OR between the HXFX and your soundcard OR between the soundcard and powered speakers. Try in all three locations to see which works best. There's no point using more than one in your application. I use these at several points in my "studio". They're cheap, work pretty well and have both 1/4" and XLR connectors: Amazon.com: Pyle Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator, Noise Filter,AC Buzz Destroyer, Hum Killer w/ 1/4" TRS Phone,XLR Input/Output, Uses 1:1 Isolation Transformer : Musical Instruments