Originally Posted by chris661
It is doable.
What you need is sufficient series resistance (or use an amplifier with variable output impedance) to raise Qes such that Qts hits ~0.3-0.4
Wasteful, yes, but it works according to winISD and the like.
OK, but you still have only 1mm (if I remember well) max extension, it will still struggle with bass before "clipping".
I do think it's better to give up on this idea of a bookshelf FE206En. There are several immediately good choices for bookshelf speakers, why torture yourself?