I was running the 20-30PCi through Avia and noticed that around 70Hz the SPL dropped off, then came back at 60Hz. Is there a way to fix that? Is that crossover? 20Hz? perfect, and AWESOME! I place the monolith in 4 different spots and this seems to be the best . . .at the moment. BTW - new stands are next and after those you will start hearing questions about new surrounds.