If I feel the sound is damn close but just needs a lick of eq - my first go to eq is a channel of a Focusrite 215. The narrow band EQ is great for lifting bite & I can taylor low end by self lift & or HP filter.
I find somehow the EQ in the Neve 1073 rotten for distorted gtr eq..
The eq in my Black Helios modules ARE wonderfull - but IMHO best on clean or 'retro' sounds.... besides the level my 4 operate at is lower than standard +4 operation - so they are kind of 'fragile'. The HF eq can add sharp 'cut' but is fixed and can't be tuned in. The mid eq sound although glorious, is sort of 'rounded' and smooth - it can add a wonderfull 'horn frequency' 'glide' to things... but it's usually cutting 'bite' that I want to add to dist gtr..
Gtr sound
UA1176 (sometimes)
Focustrite 215 (line in to use EQ only)
Fatso
Converter
My hack 2c
Howerver I am VERY interested to see 2 suggestions for graphic eq's - I havent used a hardware graphic for almost 2 decades - I always disliked them, finding the HF boost "tinty" & metallic. BUT that was then and perhaps a certain brand put me off. Recently, I am using quite a lot of the API & Neve graphic SOFTWARE plugins (URS) - So I should check out some hardware graphic's - the API ones appeal to me..
Graphic eq - revisited! Sounds like a new thread title to me!