Yeah, he has (at least from what you can see on stage; who knows what's going on behind) switched to Magnatone, though it makes no difference; the SL-100 is just a Marshall 2203 with two footswitchable preamp gain settings and an effects loop. There's absolutely nothing inside one to make it sound any different from a 2203, it's just marginally more functional.
They certainly are very bright, just like the Marshalls they replaced. There's a myth that Slash's tone is very thick with a warm and smooth top, but I think that's just because he spends more time on the neck pickup than most comparable players. All the 100w Marshalls (and their clones) are noticeably clearer and thinner-sounding than the 50w equivalents, and he's mostly using preamp distortion rather than power amp distortion, to boot. Which is precisely why he keeps asking for thicker and more powerful pickups, I imagine.
They certainly are very bright, just like the Marshalls they replaced. There's a myth that Slash's tone is very thick with a warm and smooth top, but I think that's just because he spends more time on the neck pickup than most comparable players. All the 100w Marshalls (and their clones) are noticeably clearer and thinner-sounding than the 50w equivalents, and he's mostly using preamp distortion rather than power amp distortion, to boot. Which is precisely why he keeps asking for thicker and more powerful pickups, I imagine.
