Rational35
AK Subscriber
You are correct, in that higher mass will somewhat affect Qms.
BTW: Higher Qms means less loss in the suspension- which will, in a tiny way, increase efficiency. It's also affected by the spider stiffness- with that Vas reading, it appears that the spider isn't broken in enough yet- that Vas should increase somewhat, once that's done- and the Qms and Fs will also come down a bit at the same time. <snip>
Also BTW: The E120 and 2204 share the same top plate thickness, so they will have the same X-max with the same voice coil. It's just that the magnet is stronger on the E120.
Gordon, Thank you for sweeping some cobwebs out of my old brain with your clear explanations re: mass and stiffness.
So I guess the dominant factor in the Qes difference is that the E120 coil has more turns *in the gap* ?