Why do cartridge manufacturers give a range for VTF?


My Sussurros'  manual says 1.8 - 2.2 grams. I know that Lyra, particularly the Delos has it rated at a very specific number. Just wondering, It would seem that the stated range would be very narrow.
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Showing 1 response by chakster

Well, normally there is a small range from any manufacturer, but there is also an exact recommended tracking force in any manual i have seen (no matter MM, MI, MC ....). There is also recommendation to burn in a new cartridge with higher tracking force and then lower it down to recommended tracking force. A used cartridge with weak suspension can be used with lower tracking force. So there is a case for almost any situation.  I always use recommended tracking force for 99% of my carts.