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Getting The Most Out Of A Koetsu Urushi

Recently acquired a Koetsu Urishi Tsugaru from a known and well trusted source. This cartridge has been refurbished by VDH, and has under 100 hours on it. Mu current cartridges consist of an Ortofon Winfeld, ZYX 4D, and Denon DL 304. 

The Urushi is certainly different than my previous cartridges, and I do hear lots of potential there. Currently have it installed on a DP 75 in a VPI plinth, with an Acos GST 801 arm. Phono stages available are the Liberty B2B-1 and the internal stage on a Musical Fidelity Nu Vista M3. 

The question is system configurations on how to get the Urushi properly sorted out. Are most Koetsu users also SUT users? Is there any upside to running it on this cartridge versus my phono stage in MC trim? Secondly, the output cable on the 801 is not verified as the stock one for the 801, and since the arm is wired internally with silver wire, I have considered the possibility to changing it out to a known cable of good quality. Which that one is to be, I have not made a decision on. 

I do also have a Technics SP 10 MK II in a variable density plinth, and I might consider putting the Urushi on there, although it might necessitate a change in tone arms. I have a 12" Riggle String Theory arm on it, and I suspect the wood arm may fall into the slightly warm camp, which is not what I would suspect this cartridge needs. It does seem that the SME V is a go to choice, but been thinking of other options also. 

Anyone with thoughts and experiences they care to share?
neonknight
lewm
13,368 posts
 
There are a lot of questions contained in your two paragraphs, and I cannot take the time to sort them all out, but I have owned a Koetsu Urushi for about 10 years.  I have used it exclusively with a phono stage that has enough gain such that I do not need to use a SUT (Atma-sphere MP1), but I don't think anyone has enough data on all possible users of the Urushi to tell you what "most" audiophiles do, whether they use a SUT or not.  Even if you get a bunch of responses on that subject, it still won't constitute a statistically valid sampling of Urushi users.  Far as I know, one or both of your phono stages will have adequate gain to dispense with use of a SUT, so that is what I would try first. 

With regard to your other questions, I try to mate cartridges with tonearms, not with turntables.  So, I suggest you mate the Urushi with a high mass tonearm that is also well suited to either of your two (very fine) turntables.  (I happen to own a DP80 and an SP10 Mk3.) The Urushi is low in compliance, which is why I suggest a high mass tonearm.
nandric's avatar
nandric
4,086 posts
 
I am not familiar with your phono-pres but well with Lustre 801,           Sp 10,mk 2 (aka SL 1000,mk2) and Urushi Blue Sky. The most         phono-cables from Japan are (probably) from the same supplier         because they look  like twins. Your Lustre certainly deserve the
best you can buy. My Klyne 7PX 3.5 has sufficient amplification
for Koetsu and recommends 47 K but I use Denon AU-S1 for
all my LO MC's  in order to simplify cart changes.
The Blue Sky  is one of my best carts and much better to ''my ears''    then Koestsu Rosewood Signature. So the story that Urushi's  are      ''painted Rosewoods'' I don't believe. With SP 10,mk2 I use FR-64 with B-60 VTA adjuster. The FR-64 S is parallel to the platter +           the used record. 












lewm
13,368 posts
 
Nandric, Where have you ever heard or read that the Urushi is a "painted Rosewood"?  That runs completely contrary to all that I have read about the two models, as regards their respective sonic characteristics.  When it was introduced in fact, the Urushi was heralded as a departure from the traditional Koetsu sound, which was characterized as midrange emphasis with rolled off bass and treble. (Not that there is anything wrong with that. I have never heard a Rosewood of any kind in my system, so I don't want to demean that cartridge, but that is what others wrote, especially reviewers of the Urushi.)  If the Urushi is a painted Rosewood, then the paint must have a major effect on frequency response.  That is certainly possible, I guess.

The FR64S is often mentioned as a great match for the Urushi.  Do you use the FR headshell, or the Arche?  I am thinking about mounting my Urushi in my FR64S with an Orsonic AV101 headshell.  (This is bound to upset Raul.)  My long term experience with the Urushi was with it mounted in my Triplanar. I suspect the effective mass of the TP may not be high enough to get the most out of the Urushi, but I don't know that for a fact.
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