Schmalle

Q controls for low / high cut on the EQ blocks as well as the cab and IR block. Emphasizing the cut frequency using Q higher then 0.7 empowers one to get rid of rumble / sizzle / fizz of a miced amp sound but retaining the overall frequency balance. Making a sound sit in the mix is pretty straight forward with this. I use it in the AxeFx all the time.

There is an amp model called Studio Tube Pre that you might give it a spin, but a Gain block works fine, too. If you just want to get the signal through at the same level set you need no blocks. Just make shure that Global Settings for Input Level and Output Level are set the same and your devices volume knob is all the way up. If you want to lift the signal from instrument level to line level do it there in the Global Settings. The volume knob on your device decreases volume from there. So about 2 o'clock on Instrument->Line output level setting is neutral while 5 o'clock (full) is neutral on Instrument->Instrument. If you don't want the volume knob behaviour you can set Volume Controls to Phones instead of Main+HP to switch it off.

You might want to set Send/Return level to Instrument (Global Settings - Ins/Outs). If you cannot hear / see anything after normalizing there is no recorded signal aka silence. Read the manual for USB audio since there are limitations to each USB audio track pair. Also I'd suggest to record Bass and Melody with USB 3/4 left/right and split in Logic if possible.

Pretty shure the left output jack of your HX Stomp is not connected to ground. Accidentally stepped on the plug of a connected cable to the left output jack so it broke off? If you have a multimeter at hand you can check whether it is defective: Unplug everything from the HX Stomp. Only connect two cables: one to the left and one to the right output jack. Then measure the resistance between both sleeves, it should be 0 Ohms when ok and a high value when faulty. Your power supply is not faulty. It just connects the amps ground with the HX Stomp ground with high impedance. You hear amplified mains hum.

I had 5 min to find something similar and found the Tweed BluesNrm to be a good choice. Settings I liked are stock amp/cab with these changes: Drive 2.5 Bass 6.5 Mid 7.0 Treble 7.0 Presence 7.0 Ch Vol 6.5 Dist 1.0" Low Cut 130Hz Played with my Tele on the neck position and rolled back tone on guitar a fair bit. Spring reverb for some spice. Try it in front of the amp, too! Some of the compression we hear is probably due to the some limiting from the phone that guy recorded with. Btw, in the end of the video he shows his amps: Vibro King and Bassman '59.

First impression from listening: Bassman normal channel in the room. May be start with Tweed Blues Nrm, roll off some volume and tone on the guitar, Bass @ 4, Low Cut @ 200Hz and go from there. Edit: See my post below for detailed settings.

Yes, will work. Only downside is the tap button is not blinking and the bypass state is not visible.

I actually liked the amp settings for modern fat crunch sound. So: well done and thanks for sharing! Since I own a Hx Stomp your preset was way to big to import it. So I looked at it's amp and drive settings and recreated a patch that hopefully sounds close. The cab is a dual cab mix (Blackback/409 + XXL V30/30Dyn). If don't mind give it a try, compare and leave some comments. One For The Poor.hlx

Sorry, but that is just not the case. A real time DSP has hard time constraints. If not all calculations are done, it has to break up and restart with the next sample. What that would sound like is not trivially predictable.

I'd guess you use Split Crossover? Read the manual for what it does. Use Split Y or Split A/B or even better a dual cab.

Well I'll share my to cents regarding modern sounds: I think the VH brown sound is a good place to start, because it feels awesome to play, is versatile and inspired generations of guitar players (and amp manufacturers!). One way (of many) to get it is using the ANGL Meteor. It is my (wet) dream of a modern marshallesque sound. The Helix pairs it with the 4x12 XXL V30 cabinet which is a great match. The stock setting mic 409Dyn @2.0" is also great. The only thing I change here is lowering the high cut to 6.7kHz. This will make it less open, but also gets rid of nasty harshness. We can increase the amps treble now which gets us a satisfying amout of definition/attack. Starting with this setting for the ANGL Meteor this brings me in the brown sound ball park: Drive 3 Bass 2 Mids 2 Treble 7 Presence 4 Master 4 I always use a reverb to get a room feeling. Without that I tend to always want to tweak the amp. Once familiar with that sound keep the cab and change amp to the Archetype Lead, Solo Crunch, Solo Lead, Placater etc and try to dial them in to get a similar sound. That will give you a feeling for each of those and a tonal starting point in your head/ears. That's at least what I did and got me to really dig the Helix. Then there you can experiment with drives. The Screamer 808 can get you to leads and djenty stuff, the Hedgehog D9 is instant Scorpions sound etc. Much to discover here... Regarding the cab, I sometimes like to use dual cabs and mix in a little of the same cab with a different mic. 121Ribn @6.0" worked fine so far to add a little focus on the mids. If you want to go chugga chugga metal try this: Increase mids in the amp and add a parametric eq after it. Choose MdFreq @ 405Hz, Mid Q @1.4 and cut to taste. This emulates the mid cut section found on a Diezel Herbert. To reduce mud here is on trick that emulates the C45 switch on Friedmans: Tilt EQ block before the amp: Brt50, CenFreq 670Hz, Level +4,5dB.

Yes. The FX loops of the Helix insert external audio devices (preamp of an amp head, pedals, rack gear etc.) into where ever you want in the signal chain.

Yes. Here is a video by Line6 showcasing the 4CM:

The last.

That means that the Helix is flat in the audible spectrum. So if your ears didn't trick you (did you check for equal volume?) and there is more top end in the bypassed Helix chain, it is because your original analog chain is rolling off some top end. To replicate that the high cut in the global eq is the prime candidate for this job. Second candidate is the high band: Set its Q value high and boost GAIN a alot. Then find the most annoying frequency by sweeping with FREQ. Then tame that frequency a little until you are satisfied. Only the length of the first cable to the Helix will damp some high frequencies which is fine. The second cable after the Helix transports a low impedance (buffered) signal, so that's fine, too.

I've just measured the frequency response of my HX Stomp with long term white noise spectrum analysis. The response is perfectly flat up to 16kHz.

Yes. Happened with v2.92 on mine.

All good. I think you measured the effect of the presence control. Sounds like a high shelf @2.5k with about 4dB boost.

The Buffer+ has a screw to adjust input loading aka input impedance. The Helix also is technically a buffer with adjustable input impedance. Higher input impedance results in less loss of top end frequencies. Helix has Global EQ, you can fine tune with that to match your analog rigs bypassed frequency response.

I can confirm that this happens occasionally.

Same here, if found the bass weirdly overpronounced when using Dirac impulses. As an electrical engineer I'm naturally skeptical of people's measuring methods. Please excuse! I found your file suspicious, but I've not come to a conclusion yet. I'll think about it, maybe it'll CLICK.

Did you compare that IR with a solid state version using that same method? How did you do it? Click or sweep?

A power amp's sound very much dependents on the impedance of a cab. Measuring it without a load is useless.

While this is true, modern amps that are more preamp based tend to be have a more neutral poweramp. A 6505 poweramp (like Friedmans, Revvs etc.) is much more neutral compared to a vintage style amp like a Twin (depending on the Depth and Presence controls of course - I'd guess they should be at noon for the most neutral sound).

That's what I do if I don't use (mono) post EQ.