KOETSU ROSEWOOD DILEMMA


I have an old Koetsu Rosewood Longbody from long ago. It came with a Linn LP12/Ittok, so cost nothing. But it had no stylus, and I’ve never heard it.

The stylus was sheared clean off. Some colorful fuzz was left at the scene, and forensics showed it to be red and green woolen fibers. The culprit was a clumsy audiophile in a red-and-green sweater (Christmas colors, so maybe too much egg-nog) who snagged the diamond in his cuff.

Despite the violence, the cantilever is perfect — straight and true, with a beautifully beveled flat tip for seating the stone and setting SRA. It’s not hole-through, so probably was an adhesive-only bond. Coils are fine. Suspension seems fine — sitting on a stationary LP at the right VTF, it rides just right, not low nor high — and compliance feels in the right ballpark. All in all it’s very clean, and produces sound. There’s no erosion of the gold plating, so it may have been newish. 91447 is carved into the aluminum, and an “S” — does S indicate a “signature” model?

Is it worth retipping?

As you can see, I know nothing, so any suggestions are welcome, even negative ones, especially from those who know the cartridge, and have experience with retipping.

My intention now is to keep the boron rod and just add a diamond — it should be quite close to the original sound — but I’m open to change. Installing a new cantilever+stylus is easier and less expensive, but the resulting sound is an unknown, maybe better, maybe not, maybe not Koetsu. Why have a Koetsu if it doesn’t sound like one?

Stylus-type is an issue too. I can’t even find what the original stylus was, I believe a type of hyper-elliptical. I think a fancier cut would add detail but not alter the sound otherwise, but might be wrong.

So — as I know nothing, and my few ideas may be wrong, guidance is needed.


128x128bimasta

Showing 3 responses by terry9

A few considerations:
1. I understand that Koetsu will not service any cartridge that has been touched by someone else; so if you send it elsewhere, it will never again be a Koetsu.
2. One difference between a Rosewood and a Signature is the quality of the rosewood - aged 20 years for a Signature. You already have that!
3. I’m almost certain that you would be getting a Rosewood or, more likely, a Signature rebuild. Just can’t imagine Koetsu treating a classic like that with contempt.
4. One way to make absolutely sure that you get a fine rebuild is to specify platinum magnets. That’s the best modern Koetsu technology. Costly, but worth it. To me.

I have a Koetsu too - and when it’s time comes, I plan to send it back to the factory.
Karl, my heart bleeds. But have you looked at your home insurance policy? It just may be covered.
Karl, that is wonderful news! You say that it sounds as it always did - that's new data for me. Well done, sir!