Schmalle

You will not be able to switch channels with a ground lift between the cables for the channel switch. You will defeat the noise by isolating the amp's loop from HX's ground - a Behringer HD400 / Pyle PHE 300 or something similar should do the job. The second way is to use a relay based (MIDI) switcher to switch channels instead of the HX. The third is to ask Orange if they have a recommendation for an external circuit that mitigates the pop and the noise - like smothing / filtering capacitors in parallel with the switching socket. I took a look at the schematic of the RV II which should be similar to the RV III switching wise. IMHO the problem seems to be that the Orange's supply voltage for the relay switching (that switches channels) is unfiltered / noisy. It gets connected when HX switches to the clean channel. The pop noise is the switching ground being pulled up by that supply voltage when current starts flowing through the relays' coils. Good luck - and if you contact Orange please come back and share what their view is!

1. From Edit view, turn the Upper Knob to select the point where the two paths merge. The Mixer block (circle symbol) appears only when selected. 2. Press ACTION and turn Knob 1 (Path) to select “B.” The Mixer moves to path B, and a new Output block is created. 3. Press ACTION again to drop the Mixer block. See manual page 18 if you need pictures.

Or use left and right input, one for each guitar. Make a custom colored "Tele" footswitch: Put in a gain block in the first position and Controller Assign the gain parameter to a footswitch with two gain settings, one for each guitar. Rename the footswitch "Tele", give it the led color that your Tele has (in Command Center -> Customize) and set the Max Value for gain to work with your Tele (in Controller Assingn for the Gain block). Set the Min Value for the Les Paul.

That is some kind of ground issue. How do you connect the HX to the Rockerverb other than the amp switch socket? Is the HX connected to anything else than the amp?

The main thing that I think you should investigate is the sound of your Rockerverb at different listening angles. Listen to the highs while moving around. You'll notice that when you're straight in front of your speaker the treble content is much higher than in angled positions. Directly listening to the center of the speaker it might even start to sound... fizzy, tinny, digital. That should give you a clue at what the problem is when dealing with a virtual amp with cabinet simulation: you have the choice of many angles, distances and microphones that all sound different an all pick up different amount of high frequency content. The second thing when using headphones is to use some reverb otherwise it will sound too direct and anemic. Use the Reverb->Stereo->Dynamic Ambience and experiment with Size and Mix until you feel in the right virtual space. Third point to keep in mind: volume. Loud stuff sounds better most of the time. Keep that in mind when comparing two sounds / settings. So I'd start with a Mandarin Rocker amp+cab block, copy the settings from your real amp, put the Distortion->Screamer 808 in front of it, again the settings of your real pedal, add a reverb after it. Then experiment with the cabinet settings: mic, position, distance, angle etc. Focus on the high frequency content - you'll find a lot of settings that aren't fizzy or tinny. The challenge is to find the settings where the sound is balanced the way you like it. The next challenge is to find settings that you like and that also fit in the band mix. And since you like stoner / doom stuff: don't miss out on the Moo)))n amp and the Vital Distortion. Also this article is a recommended read, understaning this will likely save you a lot of pain: https://blog.line6.com/2023/09/15/eric-klein-at-least-half-of-your-modelers-sound-is-determined-by-your-playback-system/ Take your time and have fun!

I don't see momentary bypass either. It seems only possible with an external MIDI switcher using CC#1 or CC#4. But the Poly Pitch captures the stuff that is played the moment it is engaged. Doesn't this work with the On footswitch? [Can't test - don't have an HX One]

Helix's 1/4" Outs are impedance balanced TRS outs. I don't know whether the FR-12's ground lift works with TRS but you can test it: Connect Helix to FR-12 via TS so that you hear a signal. Then engage that ground lift. If the signal is now gone then it works with TRS. If it doesn't you can use TRS->XLR adapters with the 1/4" Outs; with those the FR-12's ground lift will definetely work.

The FR12's input is a balanced TRS/XLR combo socket which means you can use it with XLR, TRS and TS cables. The choice between those option is a matter of noise added by the Helix -> FR12 connection, not the signal quality itself and TS is fine for this in most cases. [Unlike TS,] XLR and TRS provide the same benefit of common mode rejection of noise from the electromagnetic field along the cable and the possibility of lifting ground which helps with ground loop issues (50/60 cycle hum). If you use a TS cable and experience hum (without a guitar plugged in) or strange noises then XLR with Ground Lift is probably fixing that.

When you select the Volume block: do you actually see the Position parameter jump from 0% to 30% and then move higher smoothly? If so then it's very likely a (common) mechanical issue. Try tightening the M10 screw accessable on the side of the Helix. That is the axis of the expression pedal. If that doesn't help let it be repaired or - at your own risk - repair it yourself:

Check whether you've accidently Bypass Assigned the Volume block to the expression pedal. If you're not sure post the patch.

There is no documented MIDI way to achieve what you asked for. But with HX Edit you can change amp models remotely so there must be a way - be it MIDI (sysex?) or some other protocol. Good luck!

Touching the Tap Tempo footswitch displays the current BPM - you can also edit the value there. Global Settings -> MIDI/Tempo -> BPM does the same.

Good. We go on with the empty patch where only an FX Loop L block (Send 0dB, Return 0dB, Mix 100%) is added: In Global Settings->Ins/Outs set Input Level, Output Level and Send/ReturnL to Inst and Return Type to Return. Crank HX's VOLUME knob to get unity gain. Now volume shouldn't be an issue and it should work.

O.K. so it's not your amp. Do this test: A) empty preset connect guitar -> HX In connect HX Out -> amp return You hear the guitar plugged into the power amp at this point. B) add FX Loop L block in the preset You don't hear the guitar anymore. C) connect HX Send -> HX Return L/Mono You hear the guitar plugged into the power amp again. D) disconnect HX Send -> HX Return L/Mono again connect HX Send -> amp input connect amp send -> HX Return L/Mono You should hear the amp now. Do you successfully get through the steps A...D?

Yes. HX is true bypassed when it's off so your guitar is basically plugged straight into the power amp / return. Confirm that your amp's send works correctly and that your cables are not defective.

I mean - it looks like a bug. The OS uses the wrong start value (100%) for volume. Opening up a support ticket is worth a try. Maybe it's a know issue. Why don't you lower the volume on the monitors themselves? Aren't they too loud anyways?

Let's make sure your amp works correctly: Connect only the guitar to your amp and play - you should hear sound. Connect a second cable from the amp's send to it's return - you should hear sound. Disconnect only the plug on the amp's send so that only one side of the cable is plugged into the return - you should NOT hear sound. If your amp passes this test it is not the issue. Make sure to test all cables, too.

See the manual p. 38: Setting Path B’s Output There may be situations where you want parallel Path B to be sent to a completely different set of outputs. 1. In the Signal Flow view, turn the Big Knob to select the point where the two paths merge. The Mixer block appears only when selected: 2. Touch Footswitch 2 and turn Knob 2 (Path B Output) to select “Send12.” The Mixer block splits into two, indicating Path A is being sent from the HX Effects hardware’s Main L/R outputs and Path B is being sent from its Send 1/2 outputs.

Yes. Use the View button to get to Play view if it's not active. Press the upper knob to navigate to the preset list. Press the middle "Snapshot" knob.

I read this as you use the Stomp as USB interface and the monitors are directly connected to the Outs. Is this correct?

Make sure Global Settings -> Ins/Outs -> 1/4" Outputs is set to Line if the problem is low output level.

To much level causes clipping. I guess you use the delays and the H90 after the an amp block?! Lower the amp block's Ch Vol parameter to increase the headroom for the blocks that come after it.

No. Did he ever share that preset? Anyways here is the video for reference: Bonus clip from his own YT channel:

From what I understand the Helix algorithms run at 48 kHz on the DSPs and while the USB interface offers other sample rates these are converted from / to 48 kHz. 96 kHz isn't making stuff faster or better - it's twice the amout of samples without a benefit is what I was trying to say. I might be wrong about this.

The method in the video is also valid and it saves you one block, because the Send block isn't needed. Different cabling though.