@uberwalts
I ran Denon 103R’s, both stock and modified (mainly with line contact styli) for about 7 years and about 6000 hours.
If you can explain then how many times it was re-tipped?
If the total is 6000 hrs then it must be re-tipped nearly 6 times, because Line Contact life span is about 1000 hrs max (read SoundSmith article above).
Was it re-cantilevered each time, because the one and only advantage of the aluminum cantilever is that a diamond can be pressure fitted through this cantilever with minimum glue.
If the tip was glued on existing cantilever then it’s inferior.
If the cantilever was replaced with a better one then the cost of such refurbishing job is equal to the better MC cartridge.
It’s been said many times on this forum, but people still ignoring it and always claimed the re-tip is fine and always better than the original etc and so on and on ...
But i agree with @hdm that it’s very bad idea to ship a cartridge for re-tip to Russia when there are at least SoundSmith in USA and Expert Stylus in UK ... both with very strong reputation and ages of experience.
The best way to get the ART-9 back to work is to ship it directly to Audio-Technica in USA or JAPAN and replace it with a brand new sample. Or continue suffering from purchase from grey market dealers with no support from the AT.
P.S. What he does with your Koetsu is probably just soldering together a broken wire for $400.
Let’s face it: It was not even re-tip on existing cantilever (very difficult job even for SoundSmith) or replacement of the whole cantilever (stadard process for re-tippers).
If someone will do that the total cost will be 50% of the AT retail, because this cartridge can be found for $900 NEW or even cheaper. A low hrs (perfectly working) AT ART-9 can be purchased much cheaper than NEW. In my opinion re-tip or re-cantilevering make no sense at all for this model, it will cost too much and the sound will be different. This is a relatively cheap LOMC and if it was a grey market sample then it’s better to find a MINT- condition used sample with discount if having ART-9 is so important.