Schmalle

People have repaired it on their own and it's cheap. https://www.thegearpage.net/board/index.php?threads/helix-lt-pedal-sensor-issue.2307568/

Right. The minimal sum adapter that works with the Stereo Send (I tested it) is a modified TRS male -> TRS female cable (stereo plug -> stereo socket). For the mod you need two 4.7 kOhm resistors (1/4 W or more, 10 kOhm should work, too): plug L -> 4.7kOhm -> socket L plug R -> 4.7kOhm -> socket L (yes, L!) plug GND -> socket R + socket GND So you open up the socket, cut both the L and the R lead at the end, solder in the resistors and solder GND to R. That is an easy job for someone who can solder. Hope that helps.

You can read the preset with HXView and copy the settings you're interested in by hand.

1. You didn't do what I proposed which putting the Send L after the Split. With that the signal isn't summed to mono. It's the left channel only though for your amp. 2. You never specified what your amp is nor that you wanted the stereo sum for your amp. To do that you need to use the Stereo Send and external summing. There is no way to do that in the Stomp.

It doesn't. You didn't get the goal which is a dry out for the physical amp while processing a stereo signal with stereo amp modeling for FOH.

The input signal isn't automatically summed. An empty patch is stereo from input to output. The output gets hardware summed if you only use the left socket.

Pan = Center and Level = 0 dB are the defaults. They work well and I usually don't change them.

There is something that you don't seem to understand. After the hard left/right balanced Y-Split there is only the L input signal on both channels (L and R) of Path A so the summing of the amp doesn't matter. The hard paned mixer puts that signal on L only and the signal from Path B to R. The lines between the blocks always represent stereo cables. But the signal can effectively be mono if both channels carry the same signal. An amp model sums both input channels, processes it and outputs the same signal on both channels.

Use Send L for your amp and Out L/R for FOH. The amp on Path A processes the L signal, the amp on Path B the R signal with hard panned split and mixer blocks (see post above): >---o--[Send L]--[amp]--------o----> '-------------------[amp]-'

My Stomp starts up with no sound every now and then. I repower it and it works. The Output block (right circle in Edit View) is green when there is some output signal and you should hear it on the Main Outs if the VOLUME knob is up. The same signal is on the headphones out, too, unless Global Settings -> Ins/Outs ->Phones Monitor is set to Send.

You can use amp models stereo: Use two instances of the same model in parallel [set up an amp, copy and paste it and put it on Path B]. Use the Split block in Y-mode balanced 100% left and right. Use the Mixer block paned 100% left and right. From the manual p40:

No, the manual doesn't say that the 1/4" are unbalanced. It suggests to use TS cables with the 1/4" Outs. That passage in the manual is badly written IMHO and has been subject of debate several times. The 1/4" Outs are impedance balanced with TRS cables and unbalanced with TS cables.

Use a TRS cable to connect the pedal. Alternatively pull out the TS plug a little on the AUX input of the pedal and use the Tip/Ring switch in the pedal or Global Settings -> Preferences -> Tip Polarity.

No, you will not need to tweak in most cases if your signal chain is mono. If something sounds different it's probably because the cab is mono and sums it's left and right input to mono. For this dual cabs in stereo is an option. In some cases when you use a high signal level after the amp some unwanted clipping / saturation in some post amp fx (e.g. delays with Headroom parameter) might occur. Lower the amp model's Level parameter to solve this. Have fun!

Yes, no and no.