The Apollo II has the following power levels:
4/10/40W FM
4/10W AM
The cool thing is, the AM/FM Low Power and AM Low Power Modulation is adjustable, and the AM/FM High Power and AM High Power Modulation is adjustable, and these settings are independent of each other.
So I set my Apollo II up for the Low Power Setting to a 1.75W Carrier to drive a KL-203P, and the High Power is set to a 10W Carrier to run Barefoot.