Thor, whose 2sk660 SPICE model are we using?
I'm worried about the 'reverse diode' across G-S. Guru Scott Wurcer points out the reverse current at low voltage should be about 1pA.
No maker specifies anything that low as it's very temperature & voltage dependent. But that's what it needs to be.
eg MicUlli says only Infineon & NXP BAV199s are good enough for this purpose but their datasheets show reverse current in the nAs.
And forgive my asking but does TINA simulate resistor noise properly? We can test this by doing noise spectrums with just various resistors like I do on page 10 of Zephyr.doc
This is just to get a 'sensitivity' figure. We could use -66dBV/Pa which would be within 2.5dB of Zephyr's Schoeps variant with the ISK 34mm capsule.
I want the 'capsule + FET' side to be LN enough to clearly see the differences in the rest of the electronics ... as is the case with Zephyr's mike.
This would be useful to all and sundry ... as would THD at different spls for this 'hypothetical' capsule with SimpleP48RCA.
Much better than a "mine is bigger than yours!" shootout
Much better use of your time and effort too for which I'm sure everyone here will be grateful.