Ikeda it 407 has an effective mass of 35-40g, the 345 a little less maybe 30-35g. That comes from the source.
FR66s vs Ikeda IT-407 CR tonearms
Has anyone compared the FR66s to the newer Ikeda IT-407 CR1 tonearm? Any thoughts? In previous years, the Ikeda was available with either copper or silver internal wiring but the recent models don't mention anything about the tonearm wiring. Can anyone comment what type of wiring is used in the latest editions? It would seem intuitive that the later Ikeda IT407 should be a better performer than the FR66s having improved material and bearings over the FR66s but the proof is in the hearing.
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I think one reason for the differing mass data for the fr66s and other tonearms too is the dependence of effective mass upon headshell weight. Even FR headshells vary from one to another type. So if you use a much lighter non-FR headshell the effective mass can be lower than the lowest number quoted. Etc. |
@montesquieu
I don’t have FR64s, i use FR-64fx with its heavy counterweight for my FR-7fz cartridge. I can let my FR-7f go if anyone interested, nice cartridge, it was on my FR-64fx before i upgraded to FR-7fz last month. |
It is with deep regret that I must convey the sad news that Osamu Ikeda passed away at the age of 92, on 2018-09-17, Japan time. He contributed to analog audio in a manner that few can emulate, and will be sorely missed. The Ikeda brand continues, in the hands of a younger generation of cartridge and tonearm craftsmen. |
- 111 posts total