Andromedaaudio, I am notorious (in my own mind) for misreading other people's posts, but I don't see where you have specified which Koetsu you own. Among the "non"-Platinum non-stone-bodied Koetsus, I think the Urushi is unique in that it has better defined bass response and more extended highs than the rest. My point is that the Urushi might sound different from a Rosewood or Rosewood Signature, depending upon the load. I have always loaded my Urushi at 100 ohms and despite my now having been exposed to a number of other very good cartridges, I remain happy with it. The other guys have got me to thinking I should try 1000 ohms or slightly below, but I would bet that the Rosewood et al would be best with such a load. I did try 47K ohms with Urushi and found the sound a bit too thin and clinical for my tastes. This is with all-tube electronics driving ESL speakers.