amp settings for mids

Just purchased a D4000.4 and 4 mm651um 6.5" speakers. 1 speaker per channel. I understand how to set the gains with a multimeter but how to adjust the amp crossover. Where to set the "bpf, full and hpf" switch? LPF button out and HPF button in? Where to set the HZ on both hpf and lpf? thanks in advance