Is high frequency rising-up OK?

[Peter Huang]

I am studying an audio preamp. The following diagram is the simulation of ac frequency response when the circuit gain is set to be very high. I am afraid the condition will result any kind of disaster, such as break speakers. Any suggestion will be appreciated.

[Nelson Pass]

A circuit with that big a peak might become an oscillator under
some conditions. Even if it doesn't, usually a peak like that
has an audible signature.

[anatech]

Hi Peter,
That will most likely break into oscillation on some portion of the signal. It may be much worse in real life also.

I think Nelson was making an understatement when he said ....

Even if it doesn't, usually a peak like that
has an audible signature.

-Chris

[Peter Huang]

Thanks a lot.
Now I know what it means.
I may take a try specially carefully, step by step.
Thank you very much.

Regards,
Peter Huang