There's a reason the eq that inspired this plugin has endured 45 years of musical fashion & trends: it does all the right things to sound. But even a stunning classic isn't safe from my meddling tastes! For starters, this eq's curves are a bit tighter than the original. Next, I added a Saturation knob to overdrive a customized op-amp.  That knob generates a very creamy, lush distortion, I'll often use the Sat on its own, no EQ'ing. It's fat, and very much a signature Sly-Fi sound!  Stepped/fixed controls can be perfect, or they can get in my way, so I added a UBK mode where all freq and gain knobs sweep freely; I love being able to point this magical eq in between the usual frequencies. Last, I put both a classic 'A' and modern 'B' mode on a switch with the UBK mode, so you can choose the one that works best for each track. At the request of Tchad Blake, Axis can now transfer your settings from A or B mode straight to UBK mode for fine tuning. It also sports a phase flip switch, because sometimes things just sound better flipped.