Koetsu Coralstone vs Olympos or Universe?


Has anyone actually had the coralstone in their system. some say it different from other Koetsu's cuz better bass and extension. true?
and anyone actually had the Olympos or universe in their system to compare. probably not cuz so much money, but really would love to know actual experience out there to help me narrow down. thx u
ml89009

Showing 2 responses by dougdeacon

Agree with Syntax that Koetsu/TriPlanar is not the best match. I'm no fan of the classic Koetsu sound, which always sounds artificially smoothed to me. This is true of every model up through the Onyx Platinum (haven't heard the Coral). The stone bodies (especially above the Jade) are much more neutral than the wood bodies, which I find insufferable. Just me. Agree that a higher mass arm is essential to get the best from any of them.

I've A/B'd several Olympos's (Olympi?) with UNIverses in my system and in two other systems. The first thing to know, as Syntax implied, is that one Olympos is not necessarily the same as the next. A friend who's owned 4 of them confirms this. That said, the comparison in the most revealing system (mine) with the most neutral of the friends's 4 Olympos's showed that the Lyra was a hair less neutral. It brushed each note with a hint of mink (the owner's phrase, very apt). I could have lived with that one or with Frank Schroeder's. Not so sure about the others.

I've had at 10-12 UNIverses in my setup, 3 of my own plus others in for checkups as a favor to friends. While each one needed individual setup, especially as regards, VTF and SRA, once dialed in the performance was consistent from sample to sample. Reflecting on something else Syntax said, the UNIverse does not feed much energy back into a tonearm, which is why has such low sonic overhang and is easy to move around. If you want a cartridge that does a disapearing act behind the music, that reveals everything in the groove, and are prepared for the constant (daily) adjustments needed to achieve this, it will do it. Its sweet spots are tinier than the Olympos's, certainly tinier than a Koetsu's, so be prepared for that. If it isn't perfectly dialed in it's just a very good cartridge that does nothing wrong. With everything truly sweet-spotted it's really good, at least in my system.

Doug

Not to worry, I don't spend 30 minutes/day tweaking. More like 30 seconds.

The parameters that need most frequent attention are VTF and arm height.

We adjust the latter for each LP, but whether you'd want to depends on your sensitivity to integration in the time domain. What changes with the U's SRA is not frequency balance, but the relative timing of fundamental vs. harmonics. Getting these perfect matters most for natural/acoustic instruments. Whether it matters to you and your music is definitely a personal choice.

VTF changes we monitor simply by listening. If it's too heavy then speed, HF's, air and snap go missing. If it's too light bass weakens and/or you get incipient mistracking. A fine adjustment of .01g is all it takes. No scales or fuss, just a little tweak and on you go.

Pretty simple, or at least not a time waster at all.