Re: Whats the SD equivalent of a Suhr Aldrich pup ?
Closest thing to an Aldrich from Duncan, in my experience, is the Holdsworth AH-1 "Metal Fatigue" bridge pickup. Next closest is the regular JB.
As others have said, the Aldrich is a little hotter and smoother, warmer sounding than the stock JB. The Aldrich is actually an overwound Suhr SSH+, which itself is quite similar to the regular JB, so, technically, an overwound JB would be the closest thing to the Aldrich and that's basically what the Holdsworth is, though the Holdsworth is a bit smoother still due to the dual-fillister pole piece arrangement.