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now I'm looking at the Helix High/Low Shelf module in Plugin Doctor. It can do some API style shelving, but 15k on the API is around 2.2k on Helix. 10k on API equates to around 1.6kHz on Helix. Most of the useable range of high shelves are in the lower portion of the taper, and whats worse is the EQ behaves VERY odd at high frequencies. Above 4k or so, the EQ starts developing a (very) resonant peak around Nyquist. IMO a different definition of frequency values would have been more useful so you get a wider range to dial in (and more familiar to commonly used EQ's).
Neve style 10k boost is around 1k on Helix, but you don't get the overshoot.
Helios style high shelf boost would be 1.4kHz on Helix's Shelf. The shelf module is much more "analog" style but if someone says they boost 10/12k on an API/Neve/Helios, then its closer to 1k on Helix. Do not boost a shelf on Helix with it set to 10k ha.
View attachment 9533
EDIT: in fact, I'd say the high shelf starts behaving a bit strange after around 2k. The 400hz-2.5kHz portion of that taper is probably the most useful. The rest of the taper is probably never going to be useful.
EDIT 2: The parametric EQ is kind of similar in that the Q at 0.1 isn't THAT wide (narrower than Neve/SSL/API/etc). Most of the taper is dedicated to tighter Q's that are more similar/of less benefit, and the tightest Q isn't THAT tight). The difference between Q=2 and Q=10 isn't that important to me but it gets most of the taper to dial in. Between 0.1 and 1 there is a way bigger difference that would be more apparent and useful to have finer control over. Compare this to an SSL style console EQ (each half of the taper is useful in a progressive and logical way, rather than being bunched up in one portion of it). Same goes for modern parametric EQ plugins, such as Pro Q (or really most plugin EQ's these days) where the Q changes in a gradual and useful manner
That's odd and interesting.
When I mix music prefer much more using console style eqs (big and long time UAD fan here!) like the sometimes awesome Helios.
@Orvillain: Few years ago I was hired to record drums and mix the second album of a band. Had already worked with them recording drums and guitars and mixing their first record (and worked with some of the band members several times on other projects)
Unfortunately the recording process took way too long and when the songs where finally ready to be mixed, my schedule was too busy and had to let them go.
They ended up hiring a guy that was in love with notches of all kinds. He notched the hell out of the whole record, really mortified the recordings and basically fucked up everything.
I was shocked when I've heard the final mixes for the first time.
I recorded those drums with love in a great room, with great microphones through an API console and they sounded very good before that motherfucker put his hand on that record.
When the record came out the band gifted me with a copy of the CD filled with lovely handwritten insults, LOL