"Patrick Turner" whinged:

In other words, depending on bias and RL, which you have not
mentioned,
an AC30 will stay in class A for a large% of the power, and cross
over into
class AB if RL is low.
...cut rest of obfuscating BS

The specification of the AC30 includes its load, silly, and its bias
is not adjustable. An AC30 combo comes with its specified load
attached (inside, behind the cloth on the front). You are babbling
stupidly to cover up for your ignorant blurting, Mr Professional.

cheers, Ian