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Possible but not likely. 1. Make sure your Helix SPDIF is set to internal clock. 2. Make sure your DAW (or session) is set to the desired sample rate. 3. If 1 and 2 check other sample rates. 4. If nothing works, change Focusrite to digital master and Hx to digital slave BTW: If you are using Mac check which driver you are currently using. If not "downloaded multisample rate driver" you are using Helix Class Compliant. This may create some issues when aggregated.

I'm using a PC with W10. My 2nd gen 18i20 is on FW 1653. The latest. Control v3.6.0.1822. The latest. Set to 48k, Clock Source INTERNAL. No problems. Helix works. You have a MAC with Big Sur. That OS is known to have had problems with lots of stuff. I would contact Focusrite Support.

One of the pedals I'm hoping to replace with my new stomp is an LR baggs venue DI, which I've had to use to date as an anti-feedback for my mic'd banjo (in a punk band). The beauty of the lr baggs is the easy notch filter knobs and phase invert that allow me to quickly adjust to a new venue / bar / barn / wherever we are playing. FYI the banjo needs 2 notch filters because the strings resonate at one frequency and the body / drumhead another. I'm pretty solid on the concept of how both of those functions work on the lr baggs, and I'm thinking there's got to be a way to accomplish at least the notch filters, but before I start reinventing the wheel, I thought I'd post and see if anyone else has already done this (or similar) I did do some googling and searching on this forum so either I'm not using the correct terms or this might be a rarer request than I thought. Any Advice?

Each frequency range has it's own Q value. EG: The low Q Value only effects the LOW frequency range, etc... A 10 band is good for tone shaping, but not for the precision of notching. The parametric will be your better choice for that. As you also say... you can use both. First notch (to correct/control) then shape the tone. That is my assumption as well... If that is the case, then my steps should work fine. I hope it all works out for you.

Thank you SO MUCH for taking the time to respond! You're absolutely right, that low end at just under ~400hz is where the body seems to resonate on my 6 string . I have to 140hz sized notch filters set at ~300 hz and another one at ~1200hz (for the strings) so presumably I have a 'hole' from ~230hz-~370hz, and another one from ~1130hz-~1270hz. This does give me pretty good plunkity action on my D string (Banjo is tuned EADGBE, with top E and A using light strings to a make a 'roll' with the double high 'E's I sound like a much faster banjo player than I am). We have a couple of metal songs that rely on that low D string for enhancing the bassline so I'll need to be mindful of that. I have a POS old Roland Amp that is suuuuper feedback-y so I'll be testing with that. So to set the Q size, is that the "Low Q" value? I presume LoFreq is where the control point is on the eq, and LoGain is how much off of 0db center that control point should be? I had been experimenting with the 10 band eq to do this same kind of thing, but if I can cut a strategic 'notch' with the parametric, all the better. I can always overall tone shape at a later block with a trad EQ or do it at the board (but I don't wanna). On the banjo, I don't need a bunch of blocks :D. I'm going to have to carefully read your instructions for th phase invert while I'm setting it up. I only briefly experimented with a and b paths when learning how to create a preset. AFAIK, the LRBAGGS phase invert is just a straight up wave invert on the signal output, so it's mostly for dealing with feedback from the monitors, and the phase changes every 4.8 feet or so away from the monitor (and is also based on if the monitor is running true polarity or not... some venues...)

Not a noise gate, but something specifically for feedback issues. I'm thinking something along the lines of an EQ that you can notch out problem frequencies. Or better yet, something dynamic that finds feedback frequencies and kills them. Basically a model for this: https://www.sweetwater.com/store/detail/FBQ1000--behringer-fbq1000-feedback-destroyer This would be very helpful for those of us that use microphones with the Helix Floor, or acoustic guitar players. Does that exist and I just don't know about it? Should I vote for something on Ideascale?