My Sonic Lab Platinum v Gold Signature


Has anyone compared them? I’m tempted by the Platinum but a little concerned it might edge into hyper-detail, which is not my happy place. The Gold reputedly has more body, but I’m wondering whether this comes at the expense of hard-won things like nuance and dynamics.

From what I can tell the main, perhaps only, design differences are cantilever and body material. The Platinum features a boron cantilever and titanium body; the Gold sports Duralumin, a form of aluminum, for both. Myself, I’ve never heard an aluminum cantilever that didn’t color or soften the sound somewhat, but then I’ve never heard one on a top flight cartridge like the MSL. Both have a DCR of 1.4 ohm and an output of 0.5mV.

The tonearm is a Graham Phantom Supreme; the phonostage is an Allnic H3000, probably via its 13x SUT. Based on MSL’s recommendation, the ideal load impedance is around 3-400 ohms (surprising for such low DCR), so this ratio should get me pretty close to what either one needs. Turntable is an Artisan Fidelity SP10R. Music is mostly jazz.

I'm especially interested in direct comparisons, but I also welcome experiences with either cartridge, and thoughts on how they might mesh with my arm and 'table.

Thanks in advance.

 

wrm57

Good info, guys, and just the kind of feedback I was hoping to get.

@blisshifi, I can certainly understand why you would think the Platinum could be a better match with my phono stage. The Allnic H3000 is refined in nature, as you say, and most people describe it as being on the warm side of neutral, attributes that could synergize well with the Platinum's higher resolution. But after nearly a decade with the Allnic, I can say that the disconcerting thing about it is the extreme degree to which its sound is dictated by its external power supply. Rolling the rectifier can radically change almost every aspect of its sonic presentation. And the warmth people hear? A lot of it comes from the rubber footers on the PS. Not the phono stage itself, mind you, but the footers on the PS! I actually don't love the H3000 with the stock footers on the PS, finding the sound a tad bloated in the midbass and closed-in on top. Replacing those stock footers with Stillpoint Ultra SS (only on the PS), however, really opens it up, increasing HF detail, air, and neutrality, and thinning the bloat. Albert Porter turned me on to this tweak and he was so right. It's the only place I've ever liked Stillpoints. The improvement is big but not without cost: some of that desirable warmth and bass-weight is lost; and the overall tonal character shifts upward a bit. All this is to say, given the way my H3000 is tuned, I am a little apprehensive that the Platinum could tip it a little further in that lean and revealing direction. The Gold, with its musicality and body, and perhaps minor softening of edges, might turn out to be the better compliment,

@wrm57 Fair points. In all honesty I’m 100% satisfied with my Sig Gold. I’m happy that it costs a bit less as well. :)

I have a thought on the Gold that is a bit off topic of this thread, so I will message you directly. Look out for that if you can. 

@vonhelmholtz , Some years ago I owned Mac 501 monoblocks and a C2300 tube preamp. Driving PMC IB2i monitors (big things with transmission line woofers), the sound was rich and musical. I've never heard the M12000 but it looks to be similar in concept: a preamp based on 12AX7 tubes, with beefy solid state amplification based autoformers. I can imagine the higher resolution of the Platinum being spot on for the alluring Mac sound.

@wrm57 - you and I remain doppelgängers in so many respects. I have never used the MSL though had a few Airtights back in the day. When I finally visited Albert in person-- long overdue- he had two 14 inch Kuzma 4 Pts set up on his tweaked out SP-10mkiii. One had a Blue Lace, the other the Airtight Opus. The latter sounded more linear but the wood from the drum sticks was lifelike on the Blue Lace. Easy to hear the difference given Albert’s set up which allowed us to switch back and forth between arms/cartridges playing the same record simultaneously.

I can’t answer your question. I know @mijostyn is a big proponent of the MSL line (not sure which model he prefers).

FWIW, I stuck the same Stillpoints under my Allnic phono power supply with the same results. (Currently using a GEC u52 cup base rectifier, which seems to voice "just so" with my system as presently set up). So much has to do with the overall voicing of the system that what works well in one system may not be the right answer in another.

best regards,

Bill Hart

@fjn04 , @rsf507 , I'm starting to think the Gold might be the way. What you described is pretty much what I'm after.