Hi!, Í wanted to know if anybody could explain why is there a low freq. bump when applying HPF to sources on mixing. My experience is that sweeping on the low range I can find a cutoff freq that, not only removes energy, instead it increases presence. In other words, by removing low freq rumble I actually can have more Low or mid low presence. I notice the effect more dramatically on percussion chanells like snare, mostly around 80 Hz. Be it Pro Tools, the Sony DMXR100, or whatever, there is a cutoff freq that can make this happen. Am I missing something?