rd2rk

In Global Settings>Ins/Outs set Return type to RETURN.

Also, with the latest FW you can't stop the looper before you switch presets or you'll lose the loop.

RTM = Read The Manual. 4 snapshots per preset.

It's not missing, you just didn't RTM. There's two methods: Default: MIDI PC#s correlate to HX FX Presets - 01A= 000;01B=001;etc Custom: In Global Settings, MIDI/Tempo, set MIDI PC Tx = OFF In CommandCenter, use an Instant Command (IC, the lightning bolt) to send whatever MIDI message you want sent on Preset Load. Global Settings section starts on page 38. MIDI starts on page 42. This is v2.50 Owners Manual, there may be a more current version, go to the Support area of the L6 website to check.

S/PDIF eliminates one AD/DA conversion, thereby reducing RT latency. However, that latency is only relevant if you're playing a VST or further processing the Helix signal with VSTs. To totally eliminate the latency issue, just monitor the Helix direct while recording. As far as tone goes, I can't tell the difference between the recorded S/PDIF and an analog (XLR to interface) track. There are no doubt gods of recording who can tell the differences in a recording when the earth's magnetic field fluctuates, so YMMV.

What cruisinon2 said. To get a tiny bit more technical, the most wear and tear to a solid state device occurs at the ON/OFF switch, expression pedal, knobs and I/O sockets/jacks. IOW, the mechanical parts. The electronic components themselves undergo microscopic expansion when they warm up, and the reverse when they cool down. So, if you plan on still using the device 1000 years from now, you might be better off turning it on in the morning and off at night.

Unless Helix is your interface, you can't record through USB. You need to make an analog connection (or digital if your interface has S/PDIF) to your interface. You then connect with protools through your interface.

The usual: Swap cables. Make sure you're not using a hub. Front ports on a PC are usually a hub. Check your Power Saving settings. Set to Maximum Performance. Make sure the USB Ports aren't set for power saving (Device Manager - USB Controllers - Root Hub - Properties - Power Management). Try a different port. Open a Support Ticket. Report back if you find a solution.

I like it, as it allows saving a modded preset to a different location with a different name, all in one move, vs saving a preset you want to mod in a different location with a different name, THEN doing the mods, THEN saving. It also prevents accidentally overwriting your original preset.

I've never experienced problems with CCs and MIDI Thru. If you have a preset that presents this problem predictably, attach a copy of the preset and I'll have a look at it.

That would be my guess. Since you're currently shorting Tip to Sleeve and it's not working......

First, find out (RTM) what the Marshall FX loop expects - Instrument or Line Level. In Global Settings Ins/Outs set the 1/4" Outs to the proper level for the amp. If you've used stomp style pedals in the loop before without level problems, assume Instrument level. Then wire it like this: Guitar > HXFX In > HXFX Send 1 > Marshall INPUT > Marshall FX loop send > HXFX return 1 > HXFX 1/4" Left/Mono Out > Marshall FX loop return In your HXFX signal chain, add a FX Loop 1 Block. All FX BEFORE the Loop Block will go into the Marshall Input. All FX AFTER the Loop Block will be in the Marshall's FX loop.

Are you using a TRS or TS cable? The HX FX manual specifies TRS, and the Mesa Manual states that switching is done by shorting Tip to Ring. Also, it looks like the Channel Select Switch on the Mesa should be set to ORANGE.

I don't use them because I get best results using the Parametric EQ.

What dedicated effects are you referring to? I don't see one called "HPF".

Reinstall the drivers. This usually happens after a Windows update, but could also be caused by the phase of the moon. Computers.

Have bought lots from SW, but they're not a mile away.

When I bought my tube amp - a 112 combo - I also bought an EHX 44 Magnum, as a backup. Lately I've been considering the same thing as you, switching out the FRFR112 (which I like for bass) for a 112 cab and the EHX. Great minds......If you do it, do report back, as will I. Hmmmm....I haven't been to GC in a while.....NO! Don't spend more money! But it's for the music......AWAY DEMON SPENDTHRIFT! Cursed logic! You spoil all my fun!

I get the best results using the Parametric or 10 Band Graphic.

I was working with someone just yesterday on this problem. Since I never use the Helix looper, I was baffled that a guy in a YT video could do that (stop, change presets, play) but we couldn't. You seem to have narrowed it down to the addition of the 1 switch looper. You'd be providing a service to the community if you were to contact support and see what they say about it, then report back here. Thank you.

You mean two HELIX amps to two EXTERNAL amps. The devil is in the details. Yes, for that you'll either need to do it with two delays or with the single stereo delay before the split to the amps, which might be doable with more tuning - after all, it's the way it's done ITRW with an amp without FX loop.

To send a command at preset select, use an "Instant Command" (the lightning bolt). From the Mesa manual: "....the switching is accomplished by connecting ( 'shorting' ) the jack's 'Tip' to its 'Ring' (or ground.)" From the HX Manual: "Determines the Ext Amp connection [1 (Tip-to-sleeve), 2 (Ring-to-sleeve), or both] for switching an external amp's channel, reverb, or other functions. Only works when "Global Settings > Preferences" > EXP 2/EXT AMP is set to "EXT AMP."* *IMPORTANT! Connect EXT AMP 1/2 only to amplifiers that utilize "short-to-sleeve" footswitch inputs. Connecting to any other sort of input could cause permanent damage to both your amp and the HX Effects device! If you're not sure if your amp has short-to-sleeve inputs, contact the manufacturer" Be Careful!

My guess would be that updates are accomplished using sysex commands (strings, whatever), which are longer than normal commands, and that the HX does not properly pass the entire string. This is not at all unusual. Many midi interfaces behave like this. I once had a Behringer BCR2000 that wouldn't pass sysex to a Behringer FCB1010. Over on the FCB1010/UNO users group there's a whole list of interfaces that will or won't pass sysex.

In your preset, in Command Center, just set up three Footswitches to send the required MIDI commands. EZ PZ. Here's a sample preset. It was made for somebody with a Mesa, using a VDL Control Switcher, but should be good to demo the technique. Edit: OOPS! You have HX FX!. Try this one. MKV ChannelLT-2.hlx

Sorry, could not duplicate your problem, assigned three, named three. Is the Helix FW also 2.82?