Arm and cart resonance range -- discussion

I could not find a thread on this topic.

Anyone have an opinion regarding the ideal range and/or thoughts of a combination that yields in the mid 12Hz range.


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The general opinion is, that it is fine when the result is between 8-12.
It is overrated and I don't give much for it. Today you have different materials in the Arms (Steel, Aluminum, Wood, Titan etc. etc.)
These materials all have different resonances. Next, you have different kind of bearings (from construction and from design). these differences can be huge.
Back to life
I have (and had) combinations which have been between 9.7 -10.0- 10.4
Nearly super, but I was amazed that some carts performed MUCH better in Arms where the "calculation" showed different datas.
This calculation is more or less a help but I don't give a dime for it. A good designed tonearm is much more important.
I wrote several times about that when I made my comparisons with my Arms and Datas and the result was always the same, the best quality Arms worked best with a lot of cartridges at superior level. And other Arms only with a few ones.
Btw. Cartridge design does not stop with compliance, how they react with a tonearm can be totally different, but you never read something about that.
Lyra for example are superior in top Arms only, when used in Arms with cheap bearings you get an analytical sound which is not a pleasure to listen to. It is quite interesting.