AM modulation bandpass filter?
Generating AM has nothing to do with bandpass filters.  If you have a carrier frequency of 600 kHz and a modulation frequency of 1.5 kHz, the resultant AM spectrum will consist of signals at 600 kHz, 600 kHz - 1.5 kHz or 598.5 kHz, and 600 kHz + 1.5 kHz or 601.5 kHz.That is the characteristic of all AM signals: the spectrum is the carrier plus signals above and below the carrier separated by the modulation frequency. The relative levels of the carrier and modulation are a function of the percentage modulation. If you use a bandpass filter to remove one of the sidebands, than you would no longer have an AM signal but a SSB signal. Given the amplitude values of the carrier and modulation is not enough to determine the amplitude of the output since you need to know the transfer characteristic of your AM modulator; i.e. what percent modulation for each volt of modulation input. If you want to get 100% modulation you would need to increase the amplitude of the modulation signal assuming your modulator is capable of generating 100 % modulation.