Super Buffer: can't figure it out...

[antonis]

The simulated clipping-free headroom is around 4.6V (peak-to-peak)!

Is it fully symmetrical..??

[niektb]

The Harmonic Distortion stays around 0.001% till that oscillator amplitude! So the 4.6Vpp is symmetrical! Is that an expected value? Or is it too low/high?
After that it starts to deteriorate quickly but the hard-clipping thresholds are quite a bit higher than 4.6Vpp input:

Amplitude (Vp-p)	THD (%)
0.2	0.00083642
1	0.0008611
2	0.00091344
3	0.00098688
4	0.0010814
5	0.018552
6	0.62
7	4.4483
8	8.7048

[antonis]

So the 4.6Vpp is symmetrical! Is that an expected value? Or is it too low/high?

Nothing of those..
(just curiosity..)

[niektb]

Ahaha ok! I've uploaded the simulation file here in case anybody wants to play around!
https://drive.google.com/file/d/1prKze6A1x5aYZ_OxUK1VcH7I5loMiqYe/view?usp=sharing