Compensating multi-stage feedback (was: RE: all tranny vca+ )

[patchell]

Magnus Danielson wrote:

<snip>

> Linear filtering
> Impulse responce (_should_ be the result of linear filtering)
> Cross-over distorsion (small signal distorsion)
> Linearity (medium signal distorsion)
> Clipp and clipp behaviour (large signal distorsion)
> Feedback loop behaviour on distorsion
> Amplifier load impedance behaviour
> RF intermodulation (any non-linear section will act as a mixer)
> Noise and noise modulation
> Cross-talk
>

    I would add slew rate.  Once an amplifier has started to slew, you are in a
non-linear state. (IMHO).

>
> I migth have forgot some in the process since this was just from the top of my
> head. We could and possibly should elaborate on each of these. If someone sees
> something I missed, please let me know. I've tried to summarice the generic
> process but it may occur at many places. For instance, non-linear properties
> may be found in any passive component such as capacitors, transformers and
> speakers.
>
> Cheers,
> Magnus

-Jim
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