Yessir. It’s a 4GS circuit historically. Cameron developed it for Aldrich directly. However the normal circuit has a lot left in the tank and on top of it, is tuned way more vintage. I fixed one circuit theory error in the design, added variable NFB, and my own dynamic resonance circuit. This resonance circuit automatically keeps aggressive top end detail but when you’re riffing hard it automatically does its thing in the low end. So the whole amp gets nuts fast but doesn’t feel heavy under your fingers - it still feels great.